ZZ4 Head Choices
Thread Starter
Racer
Joined: May 2002
Posts: 280
Likes: 0
From: Poughkeepsie New York
ZZ4 Head Choices
Been looking into a few different upgrades for my ZZ4. I recently installed the LT4 Hotcam and 1.6 roller rockers. Have been looking into
Nitros and/or new heads. Heads choices:
GMMP fastburn
ARF 195
Dart Pro 1 200
Anybody have any info or opinion on which heads would work best in my environment? Would like to decide based on going with Nitros down the road as well. Trying not to replace to many of the parts I have, but need to know which is best bang for the $$.
Thanks.
Also, can a head swap be done in the car? From some of the other pics, looks like it.......
Nitros and/or new heads. Heads choices:
GMMP fastburn
ARF 195
Dart Pro 1 200
Anybody have any info or opinion on which heads would work best in my environment? Would like to decide based on going with Nitros down the road as well. Trying not to replace to many of the parts I have, but need to know which is best bang for the $$.
Thanks.
Also, can a head swap be done in the car? From some of the other pics, looks like it.......
Le Mans Master
Joined: Jul 2005
Posts: 5,752
Likes: 4
From: Austin Texas
You will get a bang for your buck if you use anything more than a 75 shot of nitrous on the ZZ-4, as it has hypereutectic pistons. You need to build an engine for nitrous (forged pistons) if you want more power. BTW, for a non-nitrous application, I like the Chevy GMPP fast-burn heads but the AFR's are great too.. 
