WebOct 5, 2012 · 799 vs 862 heads which is better? I have a 99 5.3 that's going in my 02 silverado that currently has a 4.8 and the 5.3 has 862 heads and I found a set of 799 … WebMar 8, 2024 · Run with the 317 heads, the modified 5.3L produced 448 hp at 6,800 rpm and 398 lb-ft of torque at 5,000 rpm. After installation of the 706 heads, the power jumped to 468 hp at 6,800 rpm and 413 lb ... contemporary women's care west orange nj WebOct 15, 2024 · While 862 heads are sand cast, 706 heads are semi-permanent mold. Also, they have smaller combustion chambers, and the milling of the deck surface will allow a slightly higher compression ratio … WebAug 1, 2024 · The Gen III have 862/706 Gen III heads, and the Gen IV have 243/799 heads. The 862/706 heads have smaller combustion chambers than the Gen IV, raising the compression ratio when swapped directly. dolphin bay apartments carson city nevada WebIt would take quite an effort to improve the port work of the 799, less so with the 862 but still a big undertaking. If you aren't an experienced porter with the ability to measure your progress, I think you should put your effort … WebMar 5, 2024 · The CNC Ported 862 LS Heads are the modern era’s most demanding cylinder heads. New stainless steel swirl polished 2.00 and 1.57 valves, new springs for up to.650 lift, new retainers, spring seats, and valve seals are included. The remanufactured 862 heads meet or exceed OEM standards and come with a slew of other benefits. contemporary women's care kearny WebShowing the port work on my 862’s setup for a small 4.8 build. Goal 375-425hp at the crankshaft prior to the Turd-Bo turbo install! 👍862 castings 20022.00/...

WebCasting Number 706 and 862 Head: 1999+ 4.8L / 5.3 Liter Truck Material: Aluminimum Part Number: 12559862 12561706 Combustion Chamber Volume: 61.15cc Compression … WebJun 21, 2024 · 799 Heads Specifications Material Make: Aluminum Intake Port Shape Design: Cathedral Exhaust Port Shape Design: D – Port Exhaust Valve Size: 1.55 in. … contemporary women's care winter park WebJan 10, 2012 · the 862 heads are off of a 2000 5.3 while the 706 heads are from a 2005. I am wondering in terms of... in this thread in this sub-forum in the entire site. Advanced Search ... I know 243 and 799 heads on 5.3 is a popular swap, but never thought about shrouding issues. Either way, still an improvment over the stock heads! WebOct 15, 2010 · The 799 heads will need to be milled a bit to get the compression ratio back to where it needs to be. That will determin what pushrod to go with. The stock heads … contemporary women's care winter park fl Web243/799 LS CNC Ported Heads. $ 1,150.00 – $ 1,895.00. Valve Options. Choose an option No Valves Stage 1 2.0/1.55 Stock Valves Stage 2 2.02/1.57 Stainless Valves Stage 3 2.05/1.57 Stainless Valves Stage 4 2.08/1.60 Stainless Valves. Spring Options. Choose an option No Springs .570 Lift LS6 Blue BeeHive .660 Dual Spring Kit w/ Steel Retainers ... WebJul 31, 2024 · The Gen III have 862/706 Gen III heads, and the Gen IV have 243/799 heads. The 862/706 heads have smaller combustion chambers than the Gen IV, raising the compression ratio when swapped directly. dolphin bay atlantis dubai prices WebApr 20, 2024 · The 706 & 862 heads have a 61cc combustion chamber. Most of the other LS cylinder heads have larger combustion chambers. ... Also, the port velocity on the 706/862 head is much better than the 799/243, which will help you with the small bore of the 5.3. The 706/862 respond very well to a light runner cleanup and a good multi angle …

Web706/862 LS CNC Ported Heads. $ 1,100.00 – $ 1,845.00. Valve Options. Choose an option No Valves Stage 1 2.0/1.55 Stock Valves Stage 2 2.02/1.57 Stainless Valves Stage 3 2.05/1.57 Stainless Valves Stage 4 2.08/1.60 Stainless Valves. Spring Options. Choose an option No Springs .570 Lift LS6 Blue BeeHive .660 Dual Spring Kit w/ Steel Retainers ... dolphin bay apts carson city nv WebJan 10, 2012 · Casting Number 706 and 862 Head: 1999+ 4.8L / 5.3 Liter Truck Material: Aluminimum Part Number: 12559862 12561706 Combustion Chamber Volume: 61.15cc … contemporary women's care winter park reviews