Hitman47 Posted February 20, 2003 Share Posted February 20, 2003 You guys on this board seem to know everything about the chevy v8z`s im new to the whole thing could someone please list all the options they could think of for manual transmissions for the v8z`s im going to the junkyard and need to know what to look for also if you know what cars they came in that would be great. Thanx guys cant do it with out yah Chad Quote Link to comment Share on other sites More sharing options...
Guest Your Car is Slow Posted March 3, 2003 Share Posted March 3, 2003 They didnt come in any car stock a 383 is a Chevy 350 smallblock with a Chevy 400 crank in it and bored .30 over. a 377 is a chevy 400 smallblock with a chevy 350 crank in it. (destroked) There are pros and cons to both. 383 usually makes more torque...377 usually makes more horsepower and revs faster higher. In a car as light as a Z...a 377 would be a wonderful engine. However the GM400 block has a few issues with it being siamesed...some claim it suffers from "hotspots" due to lack of cooling passages between the inner cyl walls. However ive never owned a 400 so I cant attest to that. HTH Brian Quote Link to comment Share on other sites More sharing options...
Mike C Posted March 3, 2003 Share Posted March 3, 2003 I'd build a 358 (.040 350) and with all the money you saved on a core and hard parts, get a killer set of heads. Somewhat common manual trans are Muncie Aluminum 4 speed, Borg Warner Super T10 4 speed, more common is the Borg warner T5 5 speed from '83-'87, the World Class T5 from '88-'92, and the T56 from 93 to present. Note their are quite a few different T56. You really should be more specific about what your goals for the car are as well as how much $ you want to spend and how you want/plan to actuate the clutch. Quote Link to comment Share on other sites More sharing options...
dune333racing Posted March 5, 2003 Share Posted March 5, 2003 :twisted:Personally I like the 377 because of its all around horsepower and best to start with an aftermarket block because of the better cooling passages also make sure you have your engine balanced and blueprinted if you want it to last you awhile. most people try to goto a junk yard and throw an engine together and then wonder why it breaks. please if you going to spend money on a engine make it last! Quote Link to comment Share on other sites More sharing options...
Mike C Posted March 5, 2003 Share Posted March 5, 2003 You are in a different income bracket than me! $2000 for a block is more than some of these guys whole projects! Lots of myths of 377 vs. 383. Been good discussions on stroke/bore and revability. Do a search, Grumpy posted really good info on this. The point of both the 383 and the 377 were to remedy shortcomings of GMs parts and designs. 377 got rid of the externally balanced crank and 383 got rid of the siamesed block. Neither which are all that bad it turns out. If you are spending that kind of money, and not limited in displacement to some class, it's insane to build either of those, go 406. Or bigger, but 415 ci seems to about the displacement/power return level IME. Then get a set of fully ported Dart pro 1's. 318cfm on the intake, $2395 complete. Got to http://www.enginemaster.com and check out the winning 365ci 604 hp pump gas motor using a 282/282 232@ .050 hydraulic roller. Quote Link to comment Share on other sites More sharing options...
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