Cam Change on 77
Thread Starter
Heel & Toe
Joined: Dec 2011
Posts: 23
Likes: 0
From: Eatontown NJ
Cam Change on 77
#3 hole dead, upon inspection exhaust rocker maybe 1/4 " travel ordered thumper cam kit w springs double roller chain and gears. Motor is stock with 4 speed any problems ahead? I hope normal cam change procedure with radiator and condenser removal?
Le Mans Master
Joined: Oct 2006
Posts: 7,123
Likes: 433
From: Gladstone MO
C3 of Year Finalist (appearance mods) 2019
Normal SBC cam change will do the job. Correct tool to remove and install the balancer, use a good 2 or 3 jaw puller to remove the crank gear, install the new crank gear. I heat them in the oven at 350* for about 30 minutes and use a short pipe to seat it. And work fast so it stays hot. Goes on much easier when hot. Look at the seal area on the balancer- if there's a groove from seal wear, put a speedi-sleeve on it unless you have another reason to replace it.
Le Mans Master
Joined: Aug 2010
Posts: 9,272
Likes: 17
plan to get more friendly with your local gas station, plan on your headlight doors working different, I took the almost new thumper out of mine and went with a factory 350 hp version, everything back to normal and works better with my 2004R swap
Le Mans Master
Joined: Mar 2008
Posts: 5,948
Likes: 72
From: Oxford MA-----You just lost the game!!!!
Scott
Thread Starter
Heel & Toe
Joined: Dec 2011
Posts: 23
Likes: 0
From: Eatontown NJ
Thread Starter
Heel & Toe
Joined: Dec 2011
Posts: 23
Likes: 0
From: Eatontown NJ
Because why???? not that wild of a cam should not be a problem with vacuum
Last edited by Toolman1953; May 29, 2013 at 04:18 PM. Reason: spelling
Thread Starter
Heel & Toe
Joined: Dec 2011
Posts: 23
Likes: 0
From: Eatontown NJ
Sh** putting in
Thumpr Hydraulic Flat Tappet Camshaft Complete Kit
Lift .479"/.465"
Duration 279/297
RPM Range 2000 to 5800
View this item
249-CL12-600-4
at the least if not happy sell it!!!!!!!!!!!
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Le Mans Master
Joined: Aug 2010
Posts: 9,272
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https://www.google.com/url?sa=t&rct=...E3oKwOKTaWdF0g
a good thread for info btw, installed mine straight up
a good thread for info btw, installed mine straight up
Melting Slicks
Joined: Oct 2002
Posts: 2,317
Likes: 111
From: St Louis MO
True, but the L79 cam has a ground in advance of 4 degrees; the L46 cam doesn't. But, if you advance the L46 cam with the crank gear or by using offset bushings in the cam gear, they're nearly identical.