ZZ4 Intake on L48
Melting Slicks
Joined: Dec 2004
Posts: 2,101
Likes: 3
From: Cruising somewhere in St. Louis, Missouri
if i am not mistaken i belive the zz4 intake is a vortec manifold and the bolt pattern is different and you would need vortec heads. I would call and ask if it's from a shop or do some more research on the internet..... what part number is the zz4 manifold?
Burning Brakes
Joined: Sep 2006
Posts: 1,071
Likes: 86
From: Rotonda FL
The ZZ4 manifold is a good start (remember that GM changed the angle of the center manifold mounting holes so you may have to do some light redrilling), but I would also add several hundred dollars for a mild cam (Summit 210 -215 degrees intake, 114 degree centerline) and headers. I did these additions to my 77 L48 many years ago and it increased the 'joy factor' by a lot. Good modifications.
Le Mans Master
Joined: Sep 2001
Posts: 7,739
Likes: 630
From: Unreconstructed, South Carolina
In concert with a cam&lifter kit makes it a worthwhile endeavor ... something like summit K1102 or crane 113932 are inexpensive & a decent match to L48's low compression.
Regardless, your OE L48 intake is not a bottleneck now nor will it restrict a streetable cam with OE L48 heads.
-edit- fill out your profile to include a bit about your car & approx geographic location ... it'll help next time. Exactly which p/n eb perf cam do you have? it like all new flat tappet cams requires new lifters too.
Last edited by jackson; Jul 10, 2008 at 10:35 AM.
