l-82 question
Thread Starter
Le Mans Master
Joined: Oct 2010
Posts: 6,929
Likes: 842
From: melbourne florida
2023 C3 of the Year Finalist - Modified
l-82 question
if i remember correctly, the l-82 used the 350-350 hp cam. which was not a bad cam ,but i think they retarded the cam for emissions, any one remember how much? and also was the retard in the cam or the timing set. alot of confusion about horsepower in those years they went to a different standard i think the n.h.r.a. had a rating on this motor anyone have any thoughts thanks
Thread Starter
Le Mans Master
Joined: Oct 2010
Posts: 6,929
Likes: 842
From: melbourne florida
2023 C3 of the Year Finalist - Modified
one way to install a cam?
if you mean put the back of the cam in the block first then yes, however there is almost an infinite way to "degree in" a cam . thats why adjustable timing chain sets are made. this is how you" tune" for low end or mid range or top end power. you can greatly affect performance by adjusting Cam timing. not to be confused with ignition timing the manufacturers in the 70 s generally retarded the cam timing to help with emissions. i had a new 78 l-82 and we advanced the cam and picked up 3 tenths in the 1/4 mile , i just dont remember how many degrees we advanced it i think it was 4 but im not certain.but we just put it back as it should have been. anyone else
Team Owner
Joined: Apr 1999
Posts: 21,953
Likes: 1,445
From: Reno Nevada
2024 C3 of the Year Finalist- Modified
I hot rodded my brand new 79 l-82. The cam is an old design with tiny lobes and very little lift. I originaly installed a Crane Power Max 272 cam with 1.6 roller tip rockers. It helps build compression on the stock l-82. The heads really hold it back
Last edited by gkull; Oct 8, 2010 at 10:48 AM.
Thread Starter
Le Mans Master
Joined: Oct 2010
Posts: 6,929
Likes: 842
From: melbourne florida
2023 C3 of the Year Finalist - Modified
chain stretch?
you must be kidding , they retarded the cam to help with emissions. chain stretch had nothing to do with it . if the chain stretched at all it would retard the timing even more totally killing power. 
