461X heads on L48
Thread Starter
3rd Gear
Joined: Sep 2021
Posts: 3
Likes: 1
From: Texas
461X heads on L48
ok guys I am new here and have been out of the game for some time so I am rustier than an old nail.
I recently purchased a 1976 L48 corvette and I want to help out the lack of HP on the low end. Not worried about top speed will be driven on the street.
I have a set of 461X heads for it 2.02/1.60 ported intake and exhaust valve guides with screw in studs matching set of heads
have long tube headers to be installed
have Holley 650 dual feed carb
HEI ignition
I am looking for what cam to use I am guessing 1.5 rockers and what head gasket thickness?
Stock motor only has 39,XXX miles too gonna trust the lower end lol.
Thanks in advance and if I asked the wrong question or didn't ask the right question feel free to call me an idiot that's how we learn
I recently purchased a 1976 L48 corvette and I want to help out the lack of HP on the low end. Not worried about top speed will be driven on the street.
I have a set of 461X heads for it 2.02/1.60 ported intake and exhaust valve guides with screw in studs matching set of heads
have long tube headers to be installed
have Holley 650 dual feed carb
HEI ignition
I am looking for what cam to use I am guessing 1.5 rockers and what head gasket thickness?
Stock motor only has 39,XXX miles too gonna trust the lower end lol.
Thanks in advance and if I asked the wrong question or didn't ask the right question feel free to call me an idiot that's how we learn
Le Mans Master
Joined: Mar 2004
Posts: 7,449
Likes: 1,476
From: Little Rock AR
Assuming you do not need the threadded holes in the ends of the heads?.......
Use a .015" steel shim head gasket with copper spray sealant on it. You need a cam for LOW RPM.
If that is not enough you can add more gear to the rear.
After that, you need a longer stroke. 😈
Use a .015" steel shim head gasket with copper spray sealant on it. You need a cam for LOW RPM.
If that is not enough you can add more gear to the rear.
After that, you need a longer stroke. 😈
Last edited by stingr69; Sep 12, 2021 at 03:47 PM.
Drifting
Joined: Mar 2006
Posts: 1,263
Likes: 188
From: Wabasha Mn
I think Comps old school 260 HE cam maybe the cam Jebby is referring to. It is 212 212 duration @050 110 lsa. The Isky old school 262 super cam is 208 208 @ 050 108 lsa I think either one would work for an automatic.
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