16 vs 62 heads? - Pontiac GTO Forum
2017年8月24日 · '70 model 16 heads are small valves approx 78-80 cc chamber heads. "62" s were used on many '69 400 4bbl engines, but not '69 WT 400 applications or RAIII GTO applications. Virgin w/o valves sunk bad, chambers should cc between 72-74 cc.
62 heads - Pontiac GTO Forum
2011年12月31日 · Well I was hoping to use the 62's because they where only $450, but 93 octane would not work with that compression ratio. I currently have 4x heads off a 1973 GTO 400 that need a new rocker, rocker stud and guide Also I have 66 heads off a 1971 GTO 455 that is a bare block that someone started changing to screw-in studs. What would be my best ...
Rebuilding 62-series heads - Pontiac GTO Forum
2018年4月18日 · Not sure what the "all out" lift limit would actually be on an iron Pontiac head, either D-Port or O-Port. Have a listing of some older cams from the 1980's. Flat tappet cams: The highest lift in a hydraulic cam is a Comp Cams with 1.65 rockers - Int/.569" Ex/.585".
#62 Heads - Pontiac GTO Forum
2005年4月8日 · The casting number "62" head was the standard GTO 400 4-barrel Auto Trans D-port head used on 350-horse GTO and Grand Prix, and on some big-car 400s, in '69. It's a 74cc chamber head, producing slightly reduced compression for the automatic cars (the casting number 16 head, used on 350-horse GTOs the same year measured 72 cc chambers).
#62 heads | Pontiac GTO Forum
2012年11月21日 · Well, I just finished rebuilding my 72 pontiac 400 to stock, which will eventually go in my 69 GTO. Now I have the opportunity to buy some # 62 heads for $300. I know that I will have to take them to a machine shop and have harden seats installed in order to run pump gas along with some other things.
GTO Owner Age Range? | Page 62 | Pontiac GTO Forum
2014年1月7日 · Age and rides:rolleyes2:Only the fun rides 18 - 1967 gto 20 - 1973 firebird 20 - 1970 olds 442 21 - 1967 gto 23 - 1972 cutlass supreme
What did you do to your ride today? | Page 62 | Pontiac GTO Forum
2023年4月15日 · 1 62 of 75 Go to page. Go. 75. fishwater ... Pontiac GTO Forum. 543K posts 40K members Since 2004 A forum ...
62 heads compression - Pontiac GTO Forum
2020年1月16日 · The car is a 69 GTO that had a rebuild by previous owner back in 2005 on the YS 400 ci with 0.030 overbore, 3 2bbl Carburetors (formerly 4 bbl), mild Comp Cams and Roller-Tip Rockers, 5 speed Tremec. Car has been running great for years.
455 over 30 62 heads | Pontiac GTO Forum
2014年1月28日 · 1964-1974 Tempest, Lemans & GTO General Discussion 2004-2006 GTO General Discussion 1964-1974 Tempest/LeMans/GTO Tech/Electric Wiring Service, Maintenance and Technical Discussion Member Introductions
1962 pontiac block | Pontiac GTO Forum
2012年10月26日 · The 538177 head (1.88/1.60, 69 cc) was used on the standard 389 and 421 for both 61 and 62. The SD heads for 61 and 62 was 540306 (1.92/1.66 68 cc). In 62 the 405hp head was 544127 (2.02/1.76 68 cc) Is there a transfer lug on the block?