L-46 Head Gasket Replacement
Thread Starter
Intermediate
Joined: Apr 2017
Posts: 30
Likes: 2
My budget for the rebuild is pretty much unlimited. I'm fine with the OEM L-46 replacement cam on this build. I believe the GM PN. is 3896962
for this cam. I'm contemplating just pulling the motor and doing a total rebuild.at this point.
for this cam. I'm contemplating just pulling the motor and doing a total rebuild.at this point.
Race Director
Joined: Jul 2015
Posts: 13,082
Likes: 3,399
From: SW Florida.
fuel pump gotta come off. oil pan comes off too to reinstall cover. then you are looking at bearings, oil pump, may as well push out pistons and re-ring. can't justify leaving the old clutch in there. now you got a bare block attached to the car by 2 engine mount bolts...
Le Mans Master
Joined: Sep 2001
Posts: 7,739
Likes: 630
From: Unreconstructed, South Carolina
JMO
IF ... If I had adequate budget ... and IF it were MY 11:1 L46 being rebuilt, I'd replace pistons to reduce compression (for pump gas) ... some porting ...
... and I'd retro-fit a good roller cam & lifters ... careful, studied choices can retain or exceed that 350 fwhp and retain L46 heads & block ... on pump gas.
I'd also also idle headwork until motor plans are confirmed.
IF ... If I had adequate budget ... and IF it were MY 11:1 L46 being rebuilt, I'd replace pistons to reduce compression (for pump gas) ... some porting ...
... and I'd retro-fit a good roller cam & lifters ... careful, studied choices can retain or exceed that 350 fwhp and retain L46 heads & block ... on pump gas.
I'd also also idle headwork until motor plans are confirmed.
Le Mans Master
Joined: Sep 2001
Posts: 7,739
Likes: 630
From: Unreconstructed, South Carolina
everybody & their brother makes an x962 equivalent
Summit store brand has HFT cam&lifter kits near x962 ... both smaller & bigger ... all for small $
e.g. Melling pn 22210 is functional equivalent & about 1/3 $ of GM 3896962
Summit store brand has HFT cam&lifter kits near x962 ... both smaller & bigger ... all for small $
e.g. Melling pn 22210 is functional equivalent & about 1/3 $ of GM 3896962
Thread Starter
Intermediate
Joined: Apr 2017
Posts: 30
Likes: 2
It's time to pick a new cam. I have it down to four choices. Comp Cams, XE 262, XE 274, XE 268 or the OEM 3896962. I just had my original 186 heads rebuilt and I'm maintaining the 11:1 compression, stock intake and quadrajet carb. Any advise would be appreciated.
Thanks
Thanks
