What did 243 heads come on
243's are capable of great hp and tq...485rwhp/431rwtq is pretty good..he's got a cam according to video if im not mistaken... ive seen results of AI's 243 cylinder heads on stock cube/cammed LS2's make close to that...as far as hand porting goes if someone has got tons of experience doing it they ARE able to run with CNC'd heads...all you had was handporting in the old daysMy question of anybody running a stock ls1 cam and 243 heads and did they see any difference with them.I read there was 29 hp gain with in a article. I was thinking about trying a pair before I do a cam in my car.
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7477 posts · Joined 2005. #5 · Jul 14, 2010. The .040" Cometic gaskets will raise compression ratio, not lower it. That said, the GM MLS gaskets seal up the best and are a decent price. I got mine from Texas Speed. Get the LS1 gaskets that are 3.910" bore diameters. That's what I used and I have no problems.Auto Parts Blog. 243 heads: 243 heads specs that make it special. By TheAutoly Team. 243 heads. Last updated on September 6th, 2023 at 04:12 am. …Jan 5, 2023 · The 243 vs. The 799 Cylinder Head. As you have most likely caught on by now, these two cylinder heads are practically the same. The main difference between the 243 and 799 cylinder heads is that the 243 was used on older engines from GM Research, while the 799 has been used on newer engines from multiple manufacturers.
Jul 16, 2007 · 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.C5 Tech - LS6 valves vs stainless aftermarket in 243 heads - Curious if you guys running 243 heads keep the stock valves or replace them with aftermarket that might help flow. Looking to pick up a set of 243 heads needing hardware and work them over myself. I imagine the LS6 valves are not undercut like the stainless...many of the factory 243's and 799's are plugged yes. You don't need the parts from your 241's, cept for the coolant sensor hole plug on rear passenger side like mentioned above. GTO parts hoarder. LsSlow Discussion starter. 311 posts · Joined 2012. #3 · Apr 4, 2014.The guys are disputing the model year of the car not the cast dates. Those are L78 heads or replacement L72 heads since the LS6 applications came with 1.88 EV and taper seat plugs. Nov '69 would be for the '70 model year (or over the counter service heads). The 291 casting was also used on earlier L72 427 with 1.72 EV & ring seal plugs.The LS engines with 799 heads are 5.3L and 4.8L. The sophisticated architecture, cathedral-shaped port, and smaller combustion chamber work amazingly on these truck engines. The smaller combustion chamber with a higher compression ratio offers increased power output. The 799 LS heads boost horsepower up to 25 hp.
The 243 heads, being performance-oriented and made of aluminum, tend to come with a higher price tag. Consider your budget and intended use when making a choice. Modifications and Customization. If you're a gearhead who loves to customize and modify your engine, the 243 heads offer more room for improvement.If you are asking, “What did 243 heads come on?” The 243 heads were typically found in GM’s C5 Corvette; however, it was later ported and now found on …What Are 243 Heads? Also known as 799 heads, 243 heads are the best performing aluminum cylinder heads that were standard on 3rd generation GM LS6 & ……
Reader Q&A - also see RECOMMENDED ARTICLES & FAQs. Last updated on 05/06/2024. The L92 is a 6.2L, Gen. 4. Possible cause: Factory has the 862 heads. I’ve been offered a 5.3 b...
The cylinder heads are designed with aluminum materials with a 61cc combustion chamber volume. They also come with a cathedral-shaped intake port and an oval exhaust port. The 826 cylinder heads on LM7 have an intake runner volume of 200cc, exhaust runner volume of 70cc, 1.890 in. intake valve diameter, and 1.550 in. exhaust valve diameter.dyno junkie. 1259 posts · Joined 2008. #4 · Aug 28, 2012. I repeatedly ran 12.09 with 243 heads on our LS1 with a similar converter and 3.73:1 gears with a Speed Inc Comp Cam 228 228 .588 .588 113. With a change to a twin 2 1/2" exhaust system and 4.1:1 gears I went into the 11's. Same cam with FAST 90 and a bigger converter ran as quick as ...
Head and face reconstruction is surgery to repair or reshape deformities of the head and face (craniofacial). Head and face reconstruction is surgery to repair or reshape deformiti...The 241 castings feature 205cc intake ports, 70cc exhaust ports, and a 2.0/1.55 valve combination. The hot factory heads would be the LS6 (243 castings), but even the stock LS1 heads can be made ...
ollies 15 percent off Apr 26, 2018 · If you’re gonna do a L33 swap into anything you may may as well leave the 799/243 heads that come one it. Yes I have seen L33s with a 799 on one side and a ls6’s 243 casting on the other from the factory. There is no reason to put the weaker 862 head on an L33 when the engine comes with the best flowing cathedral port heads GM made. enchant christmas promo codesloot link bypasser The LC9 came in GM trucks and SUVs in 2007-‘11 and made 315 horsepower right out of the box. It’s a Gen. 4 5.3L aluminum-block engine, so you’re getting the better intake manifold, connecting rods, and ECM. The engine also had 799 or 243 casting heads which are closely related to the LS6.Here's a quick data sheet on the specs of 799 heads. Due to the similarity, 243 heads should follow the same characteristics in normal situations: Combustion chamber volume: 64.45cc. Intake port volume: 210cc (sometimes seen as 209cc too) Exhaust port volume: 75cc. Intake valve diameter: 2.00 inches. amy robach bikini pics 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.Brightwood, Virginia. The '906' heads were the standard head casting for all RB and B engines from 68-72 (ish). They are good heads and were used on everything from 383 2-bbl engines up to and including the 440-6bbl engines. No difference in the heads. The cam, crank, pistons, etc are what made the differences. burkes motorcycle outlettzuyang net worthhamlet's impediment crossword A friend of a friend is selling his car and is also trying to get rid of heads with casting-# 3927186. (engine it came from is a 327ci) All I can find on these heads are: 1968-69 302 2.02 1.6. 1968-69 327 2.02 1.6. 1970-72 350 2.02 1.6. I would say, looking at the 2.02 and 1.6, these heads should flow good. police alerts abbr crossword I am debating on either upgrading my 2004 Goat with either 243 heads or upping my cam. I made a poor decision and put the GM Hot Cam in there and want more ponies. Now I know I'll gain from the heads but I think I could gain more with a bigger cam but don't want to sacrafice the drivabilty. My goal is 390-400 RWHP and 500 on the spray. capstone logistics greenville sc002175282crsr stocktwits The 862 head is commonly utilized in high-performance cars, racing, and sports cars. It’s also found in some luxury and sports cars. The 862 is a 12-valve design that utilizes two intake valves per cylinder and one exhaust valve per cylinder. The combustion chamber volume is 84cc for the 862S, 83cc for the 862C, 84cc for the 862F, 82cc for ...12,557. The heads also bump the compression from 10:1 to 10.5:1 (stock for stock),,,,since they are milled (depending on how much) the compression should be even a tad higher than that. I'm sure the better exhaust side on those LS6 heads helped as well. Pretty interesting results for sure. 10-29-2010, 01:58 PM #5.