Best cylinder heads

 

These value-priced cast-iron cylinder heads use modified combustion chambers and high-velocity port technology to provide improved performance. Cylinder Head, PowerPort® 240, CNC Street Ported, Assembled, 1. A first-time porting student of mine built the almost600-hp 350 shown. 0 L cylinder head is cast iron and weighs 60lb. Part Number: TFS-61617802-C00 4. 066” farther apart than in most Mopar heads, and this allows more room for larger valves. Feb 11, 2015 · The heads are offered in four different configurations, from a basic CNC-chamber, CNC intake/exhaust port design that flows 340 cfm on the company’s Superflow SF600 flowbench all the way up to the big-dog 400-plus cfm max-effort cylinder head designed for all-out racing applications. These cylinder heads sit on top of the engine block and house important components such as the valves, springs, and combustion chambers. 437- or 1. Make sure the bolts match. Cylinder heads come in aluminum or cast iron but don’t just choose randomly – use whatever your engine block is made of. The heads are only as good as the total package. Valves are ground to factory specifications or replaced if necessary. Jan 12, 2015 · 10855 posts · Joined 2006. Apr 15, 2009 · A Comp 270S is a great cam for a street 289. for more compression. Our research indicates the 1973 340 engines used a large, 73cc chamber to reduce the compression ratio to 8. Jan 4, 2013 · I believe the "GT 390" or CJ head is the best iron factory head for that combo, but by the time you buy a pair and have them gone through, you can do a set of Edelbrocks. I suppose, and this is just my opinion, that the C4AE-G and C6AE-R heads Cylinder Head Bolts and Studs. Ported Hurricane Single Plane and custom 750 HP. Rigorously inspected for cracks and meticulously resurfaced. depends on how you want to use the car, mainly street and some strip I would go with AFR 185's, mainly strip and some street I would go with AFR 205's or Vic Jr. 1968 Camaro NHRA/IHRA SS/C 'Super Stocker' 396/Jerico. Jan 28, 2016 · Trick Flow PowerOval 280 Cylinder Heads for Big Chevy Trick Flow PowerPort 290 Cylinder Heads for Big Ford RHS Pro Action Cylinder Heads. These heads can be ported for optimum performance on a 450 HP street engine or a 700+ HP racing engine, and everything in between. After installation of the 706 heads, the power jumped to 468 hp at 6,800 rpm and 413 lb Oct 4, 2018 · Torque the head bolts in three stages with at least 15 lb-ft between each pull. Was: 11030152. Just finished the 505" stroker with the TF 240 heads. The port opening is actually larger than the later mediumriser design, but not as tall as the exotic high-riser. In addition, it has a combustion chamber volume of about 68. Fully detailed flow sheets for one intake and one exhaust port are supplied from . Aurora, CO. May 4, 2017 · Aluminum SBC Cylinder Heads. You wouldn't put High Riser heads on a tow truck. Talk to the experts. RELIABLE REMANUFACTURED HEADS SINCE '68: YOUR ENGINES, OUR EXPERTISE. Before, I ask them, let me throw out some info on what I am doing. 45. Heads retain Ford OEM intake and exhaust port location and flange. Edelbrock 60229 Cylinder Head. 5:1. 3, you need compression or boost. First of all, 600hp is the new 500hp, and if a power adder is involved, you’d better be packing 800hp to have any bragging rights at all. Since 1968, Cylinder Heads International has been selling quality rebuilt cylinder heads. To make sure you spend your cash wisely, here are a few budget-friendly options to guide you. ( 3 ) Estimated Ship Date: Monday 6/3/2024. 00 outright (no core charge) for 6X heads. Pricing starts at MONSTER™ – M311. 89 9" TL rear. 979. www. 550" Dual Springs, Big Chrysler, Mopar, Each. Generally, the With 25 302 Ford Small Block Cylinder Heads for sale, and a variety of options available, you're sure to find the ideal Cylinder Heads for your application. Dec 5, 2023 · When upgrading your 4. Jul 10, 2022 · 741 posts · Joined 2004. For the money (and for a non-roller cam, carbureted engine) I think Buddy Rawls would recommend the early 70's 351w heads. R. These heads are designed to enhance the power and torque of the 4. Dirt cheap, big valves, small quench chambers and good ports. Apr 14, 2019 · The object of this tech article is to explain that just “hogging out” the intake port on a pair of heads can easily rob power from your high-performance engine rather than making gains. M. rmcompetition. 7 shaft rockers and beehives. Those double-hump heads generally have 64cc chambers. Cylinder Head, 180cc, Flat Tappet, Aluminum, Assembled, Ford, Small Block Windsor 289/302/351, Each. Ultimately, the sizes of the heads’ runners, ports, and valves determine how much air and fuel can stuff into the combustion chamber, and as a result, determines how much Dec 22, 2012 · The '00 and later HO heads with casting # 0331 have smaller exhaust ports to produce a faster warm-up of the catalytic converter and improve emissions, but performance also suffers because the ports don't flow as well as those of the 7120 and 0630 castings. Between the light valves and better springs, the engines will pull cleanly to 7000 rpm. 030 in. ” However, their thin cross-section allows for a high-velocity and smaller-volume runner design with excellent flow. Rebuilding a cracked cylinder head may include welding the cracks. 525 in. They are not adjustable. Dec 1, 2019 · 706 5. Jul 2, 2019 · West Coast Racing Cylinder Heads is porting direct-injection heads in the quest to improve the already stellar factory offerings. DNA Motoring CYLH-SBC-350 Aluminum Bare Cylinder Head. 0122, 7am-10pm, everyday. The answer really depends on your application more than anything. 600-inch, at 28 inches of pressure. We have stainless steel fasteners for Torx, Allen, and hex-style screws For over a decade now, our STEALTH aluminum cylinder heads have been hands down the best bang for the buck you can find! Capable of an easy 550 horsepower (when used with our 500+ inch stroker kits) these have the potential to make 650-700+ horsepower with port work and upgrades. com. Cylinder Heads, Aluminum, Assembled, 64cc Chamber, 200cc Intake Runner, Chevy, Small Block, . Best small block chevy heads Reviews 2022. Stay away from Trick flow Twisted Wedge too much bull **** to get the right rotating May 26, 2023 · SBC heads refer to the cylinder heads specifically designed for small-block Chevy engines. By serving our customers better than our competitors, CHI has grown into one of the largest cylinder head rebuilders in the nation. 00 inches. Jumpstart Your Next Project! Find CHEVROLET 5. 250-, 1. 150” intake and 1. Jun 30, 2005 · Detroit, MI. Feel free to elaborate as you wish! High performance premium cylinder heads and components for LS & LT applications. The heads can accommodate 1. Using Chevrolet’s best-flowing, non-Z11 head, the 690, and with the proper machining, a 2. The 799/243 will kill what little compression you have now unless you mill them. Tracy Blackford, 65 Mustang FB, 331 built with 289 H beam rods and 383W piston, 282S cam, ported Promaxx 180 heads, Dougs Tri-Y headers. We have stainless steel fasteners for Torx, Allen, and hex-style screws Aug 18, 2003 · the best 351w performance heads for the money. Summit Racing™ 64cc Aluminum Cylinder Heads for Small Chevy SUM-162112. You can get there with A460 heads and a fogger at 598 inches. Location. 1968 Caprice NHRA/IHRA Stock ELiminator O/SA 327-250 HP. 000 in. D2TE-AA castings might not be the best choice for a dragster even though I've seen some monster heads made from these smogger castings. AFR 185, expect roughly the same results. 600” exhaust valve. Dec 1, 2001 · Standard 23-degree small-block (excluding the LT1, LT4, and LS1) cylinder heads vary in port volume from 160 to 170cc stock to as large as 230cc. 0. Selecting the proper heads for your engine package is arguably the single most important decision during your W engine build. ProMaxx heads have started a revolution in the performance world. Jul 2, 2019 · With a massive online catalog, you can easily view our inventory of Chevy 350 cylinder heads. In a piston engine, the cylinder head (aka " head ") sits above the cylinders, [1] forming the roof of the combustion chamber. My choice of course would be 185's. I don't mean the 69 or 70 heads, but the 71 through 75 heads. Find CHRYSLER 5. Finally, the order in which you torque the head fasteners is also important. 1968 Street/Strip Camaro 350 w/PG. 85 out of 5 stars For over a decade now, our STEALTH aluminum cylinder heads have been hands down the best bang for the buck you can find! Capable of an easy 550 horsepower (when used with our 500+ inch stroker kits) these have the potential to make 650-700+ horsepower with port work and upgrades. Mar 24, 2017 · FRPP Z2 Cylinder Heads For 289/302/351W SBF. 4 cc. The stock heads can be CNC ported for more airflow and milled up to . Heads flow air and manage the combustion of the fuel charge and, therefore, are critical for attaining the proper output level. 4″ bore minimum applications and compatible with both factory and aftermarket LS blocks, from 6. WHICH HEADMAKES MORE? We compared the four most popular stock LS heads in a back to back shootout. We stock products from the best brands on the market such as Edelbrock, World Products and Air Flow Research. After installation of the Edelbrock Performer RPM Dec 1, 2001 · Standard 23-degree small-block (excluding the LT1, LT4, and LS1) cylinder heads vary in port volume from 160 to 170cc stock to as large as 230cc. This is probably the best cylinder head casting that Chevrolet has ever produced for a production small block Chevy. The Stage 1 head is fully CNC-machined and is delivered An easy way to gain 20-40 horsepower on any 1955 and newer Small-Block Chevrolet V-8 (except later-style LT1/LT4 engines with reverse-flow cooling) is by installing a set of Vortec cylinder heads. Been looking at the Trick Flow 270, but don't have any projects that need them at his time. Apr 13, 2022 · Port Specifications. Generally, the Jan 18, 2021 · The big change with both heads we’ll look at is combustion chamber size. I believe they are called the 325 heads. 2L/440 Cylinder Heads and get Free Shipping on Orders Over $109 at Summit Racing! Cylinder Head, PowerPort® 270, Max Wedge, CNC Comp Port, 1. With the newly designed heart shaped combustion chamber, it’s still the best selling package at Indy, transforming power deprived combinations into serious street/strip machines. T5z and 3. We take pride in offering an impressive selection of cylinder heads, covering a wide range of vehicles, including Ford, GM, Dodge, Chrysler, and a variety of foreign makes such as Honda, Toyota, Mazda, Nissan, BMW, VW, Audi, and many more. Flow numbers can be as high as 325 cfm at . Uses stock LS3 rocker arms with FED Jan 12, 2015 · 10855 posts · Joined 2006. Oct 28, 2005. Specialized Department. Jun 9, 2019 · 3,046. Cylinder heads for all makes and models. Since its establishment in 1938, Edelbrock has been one of the recognized planners, manufacturers, and suppliers of automotive aftermarket replacement parts. ARP Pro Series 12-Point Cylinder Head Stud Kit (134-4303) Magnetic Bumper Cap with Lug Fitting End and Standard Cap Set. A441 Hemi heads would also be a very good choice. Other considerations when choosing small-block Ford heads are combustion chamber size, port size, and valve size. Items 1 to 12 of 40 total. Ultimate 348-409 Guide – Cylinder Heads. 125-inch-or-larger bore is required. DART MACHINERY. 56 . Cylinder head. Feb 1, 2008 · Our basic 310-cfm package increases as-cast intake port volume from 215 cc, to 235, and boosts airflow from roughly 280 cfm, to 310 at 0. Selecting the best cylinder head for your application takes careful consideration and requires weighing many factors so you have the correct casting that matches your engine package. 625-inch-diameter springs, and several are available. Valve springs are checked. Sep 24, 2015 · Cathedral port cylinder heads have been mistakenly dismissed by many in LS-series circles for being “old-tech. 85 out of 5 stars Mar 5, 1999 · Stock out-of-the-box Vortec heads have approx. QUALITY REBUILT CYLINDER HEADS. #6 · Jul 1, 2012. Don’t give up the engine you know and love — install Gearhead Engines’ remanufactured cylinder heads and you’re good to go! Gearhead remanufactured cylinder heads go through a stringent 9-step process to ensure they’re top-of-the-line and reliable. SBC heads are crucial for optimizing airflow and combustion efficiency within the engine, directly impacting overall Find DODGE 5. The gm l92 and ls3 heads are popular choices known for their excellent airflow and efficient combustion. I have a 350 4 bolt main block that was made between '77- '79. The FloTek 180cc aluminum alloy casting cylinder heads are the answer. In Stock. The valve spacing in the W9 cylinder heads allows the use of large valves. If you want to make power with a 5. Gamble says this is where big ports and big valves have their advantages. 480HP potential naturally-aspirated. Our commitment to excellence in craftsmanship, precision engineering, and stringent quality control sets us apart in the industry. Auto Dynasty Straight Aluminum Bare Cylinder Head. to fit the seats. This is a huge port-volume range. By Len Emanuelson. AutoZone provides top-quality replacement engine cylinder heads for a variety of vehicles, including an engine cylinder head for Ford Taurus or Malibu cylinder heads, so you're sure to find the perfect cylinder head for your specific make and model. Cylinder Heads, Street Porting, Aluminum, Assembled, 75cc Chamber, 195cc Intake, Chevy, Small Block, Pair. WILL SHIP DIRECTLY FROM MANUFACTURER ESTIMATED SHIP DATE: TBD. We ran the 706/862 Jan 12, 2022 · This head is intended for blocks that feature a minimum cylinder bore diameter of 4. Get back on the road quickly with a remanufactured cylinder head. Find all of the cylinder head fastening equipment you need to complete your engine repair or rebuild with our vast, in-stock selection of low-priced head bolts and head studs for a variety of vehicles, engine types, and cylinder head styles. Sep 21, 2015 · These large-runner heads have a 12-degree valve angle, like stock, and are compatible with factory LS7 rocker arms and stands. 1 day ago · FLOTEK 180cc Small Block Ford Cylinder Heads 203-505FT. The “Gate Keeper” of all aftermarket LS3 heads, naturally aspirated and boosted applications up to 1000hp (with tuning and supported modifications). Dyno tests have proven that comparable aftermarket cathedral port heads […] And this is where the Speedmaster PCE281. 2049 small block ford attains the identity of best flowing SBF heads. Cast from prime 356 T6 aluminum. 1. 550-inch valve springs to complement the camshaft design your engine is utilizing, Viton valve seals, hardened spring cups, a Dart two-piece guide plate, and ARP rocker arm Prevent your engine from dying with an upgraded cylinder head from AutoZone. At this point, I bring only a few questions to the table. 3L HEADS vs 241, 799/243 vs 317s. 8 l engine, making them ideal for performance enthusiasts and engine builders. Apr 27, 2022 · The best choices for big-inch stroker engines are W9, Indy, and Brodix heads. If your final torque is 75 lb-ft, begin by pulling each bolt to 45 lb-ft, followed by a pull to 60 lb-ft and then making your final pull to 75 lb-ft. 100" to . After the repairs have been completed, the components will be reassembled, and the cylinder heads will be tested. 250 inch intake valve can be used. If you don’t believe me, just search online for “cylinder-head porting more Jun 10, 2019 · I would like to know what cylinder heads you guys are using. With GT40 heads, the 750 Double Pumper worked best; with the 11R heads, the 1,000 HP carb was the Jul 18, 2012 · These rectangular port iron heads from Summit Racing offered surprising bang for the buck. Add to Cart. Jul 6, 2018 · The problem with adding bigger fuelie style cylinder heads like the 461 or 462 is that, while these heads increase airflow over a stock 283 head, this also increases the combustion chamber volume. The 799/243 head is great for flow, but given that your engine originally came with 706 heads, it likely has dished pistons. 2L/318 Cylinder Heads and get Free Shipping on Orders Over $109 at Summit Racing! Cylinder Head Bolts, Chromoly, Hex, for Use On Edelbrock Feb 11, 2015 · The heads are offered in four different configurations, from a basic CNC-chamber, CNC intake/exhaust port design that flows 340 cfm on the company’s Superflow SF600 flowbench all the way up to the big-dog 400-plus cfm max-effort cylinder head designed for all-out racing applications. Part Number: FLK-203-505FT. Jan 16, 2015 · The ability to port your own heads and manifolds to a professional level puts you in a position of building significantly higher output engines for very little extra cost. 50-inch valves. Shop 351W Ford Small Block V8, Cylinder Heads and get Free Shipping on orders over $99 at Speedway Motors. #11 · Jul 12, 2022. 72/1. I would call Bryce @ Dj's Porting Service/Air Wolf Cyl. When it comes to the 289- and 302-ci engines, port sizes never changed, nor did valve size. All cylinder heads have a three angle valve cut with a blade type seat cutter. Completely rebuilt. #14. Output was increased to nearly 750 hp when the nitrous was activated. Equipped with the stock E7TE heads, the 331 stroker produced 346 hp and 391 lb-ft of torque. After all, they’re built to OE specs (and sometimes better than specifications). May 1, 2017 · May 1, 2017 by Mopar DiY. 3L produced 448 hp at 6,800 rpm and 398 lb-ft of torque at 5,000 rpm. We design and manufacture a large line of cylinder heads for LS1, LS3, LS7, LS9, LT1, LT2 & LT4 engine platforms. The L31 heads from the late-model 350 Vortec engine, introduced early in 1995, is the other type of cylinder head you need to look for on the used market. At Alliedmotorparts, we take pride in offering top-quality rebuilt cylinder heads that are built to last. Lightweight hollow stem LS3 valves can be cut to 2. 95. 600 lift. 580 HP. Dec 1, 1999 · Best of all for vintage Ford owners, the new heads bolted right on top of 289, 302, and 351 Windsor engines, so all of a sudden we went from digging through junk yards for suitable factory heads Jul 1, 2012 · 452 posts · Joined 2008. The earliest 265 and 283 small-blocks relied on an iron Power Pack head that featured 58-cc chambers and tiny 1. Put it in a '66 Fury III C-Body with TTI headers, and the angled spark The C3AE-D head’s intake port and chamber is a classic low-riser design. The Summit Racing head upgrade improved the power output of the 496 from 630 hp and 577 lb-ft to 688 hp Jan 12, 2022 · This head is intended for blocks that feature a minimum cylinder bore diameter of 4. Jan 11, 2005 · Most Practical Cylinder Heads for 383 build up. Dart Pro 1 LS3 Gen III Aluminum Cylinder Head 11030152 - 280cc, Assembled. The stock 283 used a 58cc chamber. Featuring 180 cc ports with a unique design made for versatility, the FloTek SBC head is one of the best SBC heads for low-end torque. Most non-performance FE heads have come to be considered “low risers Oct 21, 2001 · Oct 21, 2001 #2. After years of extensive R&D both on the flow bench and on our track, we have developed some of the best performing round port and D-port cast iron Pontiac cylinder heads ever. Competition - The finest Custom Engine Building for any venue ! Selling Parts and Supplies from companies I use 1 (586)909-1591. 0L truck engine to 427ci race engines. The CNC version of the TFS 290 heads. Call 800. 2. Mar 16, 2017 · 331 Ford Head Test-Stock vs Edelbrock Performer RPM. Those looking to increase the valves in 348 heads can’t go that big due to the design of the heads and castings. Positive stop rocker arm studs are a “tighten it up and forget it” type. $2,000. In more modern overhead valve and overhead camshaft engines, the head is a more ProMaxx Performance Big Block Chevy Aluminum Cylinder Heads. Greetings and Happy New Year from the new guy to all of you out in hot rodder land. Intake ports feature a unique “Velocity Vane” in port floor to direct airflow around the valve stem – that leads to more HP and torque throughout the full power Jul 10, 2022 · 741 posts · Joined 2004. ( 9 ) Three things matter the most regarding SBC heads - quality, price, and performance. You need Find DODGE 7. As with our casting numbers on W engine blocks, Chevrolet’s head information is often sketchy at best. 000 inches or larger. A lot has changed in the performance cylinder head market since my last head story in EB in 2010. toll-free at 1-800-572-1963. C460, Thors, or profilers are also good choices. The bigger heads to follow were the “double-hump” heads championed by the mid-’60s 327 engines. There are reports of some shops getting close to 300 cfm out of these heads in fully-ported form. Once again, if the heads are reworked at all, all bets are off. If you are looking for more power and better performance from you LS or LT engine, look no further. Now: $1,926. Competition cylinder heads should perform well at rpm levels in excess of 10,000 rpm. We always welcome big power gains, but it is even better when the extra power at the top of the rev range comes with no loss in low-speed torque. Dyno tests have proven that comparable aftermarket cathedral port heads […] Jan 29, 2021 · No matter which cylinder heads were installed, the engine made best power with the bigger carb. Heads (714)943-3404. The stock 4. Fully race-ported flowing 275 cfm @ 28" water with 2. Cylinder Heads International (CHI) is a prominent player in the automotive industry, specializing in remanufacturing cylinder heads in the United States. 8 l engine, selecting the best heads is crucial for optimizing performance. The LS3 cylinder head has 260-cc intake runners and 92-cc exhaust ports. With a rich history dating back to 1968, CHI has established itself as one of the largest and most reputable remanufactured cylinder head companies in the country. 055/1. I guess what I'm saying is you have choices. Besides stock iron heads, the B-1 B/S, 440 Stealth, Trick Flow 240, and Max Wedge Victor heads. The valves are spaced 0. Contact Clearwater Cylinder Head Inc. The Stage 1 head is fully CNC-machined and is delivered The intake ports are ported per application (326, 350, 389 and 400 cubic inch engines) Exhaust port remain stock on Stage 1 heads. 60 valves, potential is approx. #3 · Jan 13, 2015. A 4. They have custom designed a head to meet the demands of the Big Block Chevy world, while keeping the quality high and the price reasonable. They are both great heads. These heads fit any LS engine with cylinder bores of 4. AFR 195cc SBC Eliminator Street Heads 1036. Race/Competition Cylinder Heads. Cylinder heads are painted, resurfaced, and reassembled. 109-1514. AFR 15° MONGOOSE HEADS - LS1 - 230cc - 65cc CHAMBER - CNC PORTED - 4 BOLT - ASSEMBLED - AFR-1660. Oct 4, 2021 · When purchasing the assembled heads, you get Manley stainless-steel intake and exhaust valves (with wither 7- or 10-degree retainers), your choice of 1. Cylinder Head Bolts and Studs. We have stainless steel fasteners for Torx, Allen, and hex-style screws Mar 5, 1999 · Stock out-of-the-box Vortec heads have approx. Published: May 4, 2017. Jan 18, 2018 · Buying big-block cylinder heads can get costly. The right intake, valvetrain, and camshaft needs to be in place for any head to reach it's potential. Fits 289/302/351 Windsor engines. These BB-Chevy heads come in an As-Cast series or Full CNC-Ported series. $699. The knowledgeable staff at CCH would also be happy to help you choose the cylinder head that is right for your needs. Base price is $1,130 each, fully assembled, through Summit Racing. 7L/345 Mopar Hemi Gen III Cylinder Heads and get Free Shipping on Orders Over $109 at Summit Racing! Cylinder Head, 212cc Black Hawk Gen 3 Cylinder Nov 27, 2010 · The cast iron manifold doesn't flow very well, you will have to do quite a bit of porting on it and even though the quadrajet will work it just won't be the best choice. 4L/327 Cylinder Heads and get Free Shipping on Orders Over $109 at Summit Racing! May 1, 2017 · When coupled to an aggressive street-oriented hydraulic roller cam, a high-flow dual-plane 4bbl LA-series intake like Edelbrock's Performer RPM AirGap, and an optimized compression ratio between Indy introduced the 440-1 head and manifold combination that soon became the most popular power for the 440 Wedge engine. Our heads are installed by shops nationwide and are the choice of many engine rebuilders. For a street car, this design means excellent throttle response, torque and average power. Lift Max, for Flat Tappet Cam, Pair. This head has 2. Today’s internet research is a tool as important as your die grinder when it comes to head-porting basics for the novice. Whether your head cracks or the bolts Head History. In sidevalve engines the head is a simple plate of metal containing the spark plugs and possibly heat dissaption fins. Dec 28, 2015 · Choose compatible metal. Mar 13, 2018 · Run with the 317 heads, the modified 5. 600" lift from our state of the art Superflow SF-450 flow bench. Speedway Motors has the best 302 Ford Small Block Cylinder Heads on the market. The best use of the 440-1 is a 451″ to Feb 27, 2009 · Out of the box Edelbrock Performer RPM vs. The low-riser designation is based on the basic size and floor position of the port. The selection list is basically rather thin for today’s performance engines. Part Number: SUM-162112. Feb 13, 2018 · Upgrading LQ4/LQ9 Cylinder Heads. $3,095. Aug 9, 2023 · Rebuilt cylinder heads are those where only the damaged or out-of-spec components, such as springs, valves, injector sleeves, or guides, are addressed by the mechanic. The two metals contract and expand at different rates under heat and pressure so mismatched components is just asking for cracking. While this reduced NOx output for emissions, this loss of compression really hurts power. AFR 12° MONGOOSE HEADS - LS3 - 260cc - 69cc CHAMBER - CNC PORTED - 6 BOLT - ASSEMBLED - AFR1840. ig vz dx sk wh kx xa dg ag uf