Zz383
CF Community Team
Joined: Oct 2004
Posts: 19,355
Likes: 5,240
From: Cape Cod, Mass.
2025 C6 of the Year Finalist - Unmodified
2025 C8 Z06/7/E-Ray of the Year Finalist - Unmodified
2023 C3 of the Year Finalist - Unmodified
2021 C8 of the Year Finalist Unmodified
2020 Corvette of the Year Finalist (performance mods)
2019 C1 of Year Winner (performance mods)
2017 Corvette of the Year Finalist
2016 C2 of Year
2015 C3 of Year Finalist
I have a 383 in my 61 (not the GM ZZ383). It is a stump puller. Feels every bit as strong as my 68 427/390. They feel alot like a big block, lots of low end torque, without the added weight of a big block.
Veteran
Joined: Oct 2005
Posts: 1,284
Likes: 81
From: Nashville, TN
I am not running the ZZ383 but I have the ZZ383 cam in my 383, so mine is close. I just have 2.02/1.6 alum RHS heads instead of the irons and my CR is at 10.5:1 instead of 9.5.
Pro
Joined: Jun 2005
Posts: 725
Likes: 1
From: FL.
Im breaking mine in now, Just put the first hundred miles on it today, and can feel it break in running it in the rpm ranges.
I used the zz383 shortblock, and built it up with Brodix IK200's , a Comp Roller Cam, 1.6 roller rockers, Demon 750, New STS turbo Baffles. Oh yeah its very Strong..Makes power from 1800 to 6000rpms in all gears. I have a rod 6sp , It will cruise at a hundred at under 3000rpms.
It wont be completely broke in for a couple hundred more miles.
I used the zz383 shortblock, and built it up with Brodix IK200's , a Comp Roller Cam, 1.6 roller rockers, Demon 750, New STS turbo Baffles. Oh yeah its very Strong..Makes power from 1800 to 6000rpms in all gears. I have a rod 6sp , It will cruise at a hundred at under 3000rpms.
It wont be completely broke in for a couple hundred more miles.
