What did 243 heads come on

Stock heads with Brian Tooley top end kit installed by PCMOFNC. 2008 Heads had 60k at install and 64k when removed for my LSX head swap this year. Perfectly fine. I can give you my personal info and you can verify with Kelly. 450 OBO plus shipping and PayPal fees. Sent from my SM-G935T using Tapatalk..

Sep 24, 2015 · The base heads come with factory valvesprings, with three different upgrade options. All Stage 1 heads have factory valves and are milled and assembled according to owner specifications. Only new “317” cores are used for the larger chambered 6.0-liter casting, and “243” or “799” cores are used for the LS6.Nov 15, 2022 · This is a SET OF 2 Remanufactured OE Stock LS2, LS6, 4.8L , 5.3L, 5.7L, 6.0L Gen III / Gen IV Cylinder Heads Assemblies. * Part # : 799 also fits 243 casting * Description : Stock LS Series 4.8L / 5.3L, 5.7L / 6.0L * Specs : Combustion Chamber Volume: 64.45cc Intake Port Volume: 210cc Exhaust Port Volume: 75cc Intake Valve …862 heads vs 243. The 862 casting number represents the 862 cylinder head. The 862 heads came on all LQ9 6.0 engine blocks and are completely interchangeable with the 243 cylinder head. Both the 243 and 862 heads have the same 64cc combustion chamber, but there are some very slight differences in the pore size of the two heads.

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45 posts · Joined 2006. #4 · Apr 12, 2010. I'll recommend TFS 215 heads and a 224/228 comp cam. A friend of mine has this package and I was really impressed. With a ported fast he made 450 rwhp and the car idled and drove great. It was actually a little tame for my taste, but sounds like what you're looking for.The newer heads were 317 or 035 casting numbers, which featured larger valves like the 799 and 243 heads, but also larger combustion chambers, which means the static compression ratio will be lower unless the heads are milled to increase the compression ratio. This makes these heads slightly less desirable than the 243/799 heads.Hey all, I'm planning on doing a ported fast92 and getting my stock heads worked for optimum power and bang for the buck. With that said, I really don't... in this thread in this sub-forum in the entire site. Advanced Search Cancel ... Who should work on my 243 heads? 1338 Views 13 Replies 12 Participants Last post by TheGoatHooker, Aug 20 ...Some of the most sought-after cylinder heads for GM s LS engines are the 243 heads. They're often referred to as LS6 heads, as they were originally used on the 2001 to 2006 LS6 engine. These 243 heads feature a distinctive D-shaped exhaust port coupled with cathedral-shaped intake ports that provide better breathing capabilities and …

The 243 heads came on the LS6 engine produced from 2001 to 2006. It was typically found in the C5 Corvette, but it was eventually ported to the LQ4 and LQ9 to meet truck specs. The latter offered 6cc larger combustion chambers to accommodate the working style vs. speed and acceleration.the LS6 243 heads have the hollow Intake and Sodium filled exhaust valves for higher RPM use. 7000 rpm Reply Like. 05-01-2012, 11:59 AM #4 chassed. Melting Slicks . Member Since: May 2009. Location: Rio Rancho New Mexico. Posts: 3,123 Likes: 343 Received 281 Likes on ...Some General Motors vehicles, specifically those built between 2001 and 2006, come with the LS6 engine that comes equipped with 243 heads. This includes the 5.3 and 4.8 models, which are generally outfitted with these factory-designed 243 heads now. To check if the 5.3 is equipped with 243 heads, look for a three-digit stamping near the valve ...The 243's have bigger valves which do better on 4.0" and larger bores. On the smaller 3.898/3.78" bores of the LS1/6 & all 5.3/4.8's the 706 are very decent. On a 4.00" bore of an LQ4 though it is splitting hairs. On the same cam, on the same engine, the heads are going to perform within +/- 5hp/5tq of each other, it is almost meaningless.

I'm always for more cubes. But, if the 5.3 is solid otherwise, and you don't need the little extra power and/or don't wanna spend the money for the 6.0 swap, then fix the 5.3. You can do small easy things to the 5.3 to match or exceed the 6.0's power and maybe still come out cheaper, depending on the cost and condition of the 6.0 in question.Jan 6, 2009 · To 2007 head issues #243 vs. #799. C6 Tech/Performance - 2007 head issues #243 vs. #799 - I read a thread not long ago on C6 general about a difference in the heads on the born in Oct. 06 C6's that GM used, they used #799 heads as opposed to #243 heads. The person who wrote the thread said his numbers on the dyno where … ….

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What heads came on 6.0 LS? What did 823 heads come on? What did 243 heads come on? 9 Minutes Read . Our team of experienced writers and industry experts are dedicated to providing valuable and informative content to help you make informed decisions about your next car purchase. Stay tuned for exciting content and join the conversation by …Another thing to consider is the life span of the MTI springs. The stock GM springs are guaranteed for three years, or 36,000 miles but generally last the life of the engine. Would you have this assurance with the MTI springed heads. Below are some GM numbers for 243 heads as a comparison. Stock CNC'd LS6 heads I E.100 .200 147 111

May 15, 2024 · The 799 cylinder heads come with a 64 cc combustion chamber, whereas the 243 comes with a 65 cc combustion chamber. While the difference seems ignorable, it is a known fact that a smaller combustion chamber will create more compression and improve vehicle performance.When it comes to the question of which models had 799 heads, it is clear that truck manufactured in 2005 and later are equipped with these heads. This includes newer models of 5.3L and 4.8L trucks, which were given the 799 head design to increase performance and efficiency on these engines. Furthermore, this trend continued into 2010 when Chevy ...There have been several back-to-back tests where they swap all the OEM heads around on 5.3's and 6.0's. Holdner's are probably the most "Famous". They clearly show the small valve heads (stock for stock) make the most power. (Yes, more than 243's.) All NA tests, nothing to do with forced induction.

trading astd The first has to do with port shape. The LS6 and the later LQ9-LQ4 heads used reshaped intake ports and D-shaped -- as opposed to oval-shaped -- exhaust ports for better flow: 200 cfm intake and 70 cfm exhaust for the 241's, and 210 intake and 75 cfm for the 243's. The second major difference is that the LS6 heads used hollow, sodium-filled ...7477 posts · Joined 2005. #2 · Jun 22, 2012. A stock pair of 243 heads can gain about 20 hp on a bolt-on LS1. Since you already have a cam, you might see a bit more. If your budget does not allow a full porting job, don't sweat it, just swapping to 243 alone will be a big help. subastas copart houstongolden corral macedonia oh 44067 Let's celebrate a hunting round that is aging well. Prior to the 243 Winchester's arrival, America's most versatile, light-recoil, "dual-purpose" cartridges for hunting varmints and deer were the 250-3000 Savage and 257 Roberts. Both pushed .257 caliber bullets of 87- to 120-grains in the neighborhood of 2,600 to 3,200 fps. les schwab tri city Thanks. 853 and 241 are basically identical. 853 was used on 99-00 LS1 engines. 241 was used on 01-04 LS1 engines. They both have a 66.67 cc combustion chamber (10.1 CR), 200cc intake runners, and 70cc (round) exhaust ports. The 243 head is the 01+ LS6/LS2 head.Bandaging that gnarly cut before you head to the emergency room? Snap a pic first. We’ve advised you before to take photos of your children before a big outing, screenshot your boa... best seats in chase fieldstranges auto salvagecar ad letters crossword clue The two types of heads, 241s and 243s are found in many vehicles. The combustion chambers for each of these types differ slightly: 243 heads have an internal volume of 65cc while 241s have a 67cc size. Due to this difference in size, the compression ratio for 243 heads is higher than that of 241s, meaning that more power can be generated from ...I am going to do some very mild porting and get 50 to 60 thou taken off the heads, whatever i can get away with without having to get the intake done too and use some fel pro steel shim head gaskets and hopefully I will end up with some decent compression, should be right around 10 to 1. Cam will be a hydraulic flat tappet 224/234 @ .050 with ... go navy beat army memes Head gasket repairs can be expensive, but the cost can vary significantly depending on the cause of the issue and the type of repair needed. Knowing what factors impact the cost of...Trick flow 228/230, K&N CAI, Beehive Springs,Hardened 7.4 length Push rods,Spintech Catback Exhaust. The rest of the car has stock manifolds,stock intake,stock cats,stock 241 heads. I pass smog and put 365 to the wheels and 352 pounds of torque. I have a simple set up and I will be installing AI 243 heads and shorty Headers with in this month. joann fabrics taylor mithe book of clarence showtimes near grand 18 winston salemanton auction lockhart tx According to the internet, some of the best cathedral port LS heads available have a 243 casting code, and would have originally come on 2001 or newer LS2 and LS6 engines. They have larger intake and exhaust runners and a smaller chamber, meaning more compression and better airflow.