IM rebuilding a 67 GTO Lemans 400 ci HO on the removed cam are 524 886 then CWC Whats this mean? Somewhere I read the only cam Pontiac put in this motor was the 288/301...What does that mean? I want to put a larger cam in but need to know what I have 1st. This is the Original factory cam any help much appreciated!!!!!
Hello. I dont know if maybe you missed it at the top of the screen, but this is a Buick board. Not to say that no one will chime in and help you, but you might have better luck with Poncho motor questions on a Pontiac forum. And by all means, stick around if you would like. There is lots of knowledge around here and plenty of good people willing to share it.:beer
I'm not familiar with those markings but the only two cams in the `67 GTO were the standard cam (335hp) and the HO/RA cam (360hp). The HO cam was GM#9779068, which is also the same cam as the `68 HO and RAI, `69-70 RAIII, and `71-72 455 HO. It's a pretty good cam but if you are contemplating a change I highly recommend the Crower 60916. Just my opinion.
I ran the 9779068 for years when I ran my Firebird in E/SA, if you are looking for power over 5200 rpm look elsewhere.. Even the Crane blueprinted version fell way off over 5200 rpm.. Stock Pontiac cams are identified by a two letter code stamped on the end of cam. I think the 9779068 is stamped "TP".. But its been a long time and my memory lately has been falling off like the 068 over 5200...LOL Try this website for the latest Pontiac hot set ups.. http://forums.performanceyears.com/forums/index.php
The first Ram Air cam, the last three digits of part number was 744, and the Ram Air IV cam was 041. The 068 cam was not used in Ram Air cars. The 744 cam had .414 lift (1.5 rockers) with 301/313 duration. The 041 had .520 lift (1.65 rockers) with somewhere around 310/320 duration (the best I can remember). Both cams work well with a 3500 stall convertor and 3.90 gears. 4 speed cars should have a close ratio box. Thanks, Ken
Lots of answers for a Buick only board, isn't it? The "CWC" is the foundry that cast the cam blank. CWC was formerly Campbell Wyatt and Cannon in Muskegon, Michigan. I think the company still makes most of the cast cam blanks in the world, but they've offshored most production as far as I can tell. Cast in numbers only tell you what blank was used. The grind would be indicated by a stamped in part number someplace. More than one grind was produced from the basic blank.
THANK YOU MEN........... That's a terrific bunch of info. I have got nothing on the GTO site in 2 weeks.......... :beers2:
If I wanted to kick the cam up a couple notches.............? Bill, is the Crower 60916 more powerful? I'd like a bit more power than stock.......hehehehe thank you!
