350 -> 383 rebuild

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350 -> 383 rebuild

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Chevrolet Forum >> General Chevrolet Forums >> General Tech >> 350 -> 383 rebuild

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350 -> 383 rebuild - 9/9/2006 5:17:35 PM

KyleTaylor19

Posts: 4
Joined: 9/9/2006
Status: offline

Would it be more cost effective to purchase a crate engine than to rebuild the 350 I have in my garage... I would like some moderate power for this project, nothing too crazy....

KYle

Post #: 1

RE: 350 -> 383 rebuild - 9/9/2006 10:32:23 PM

kcb37

Posts: 504
Joined: 7/3/2006
Status: offline

A 383 stroker is a bored and stroked 350.
My question is what do you do with this pickup?
Do you need more power?
Your gas mileage will go down and if the 350 runs you don't need to change anything. But I do see how you feel, I like power too.

(in reply to KyleTaylor19)

Post #: 2

RE: 350 -> 383 rebuild - 9/10/2006 12:43:38 PM

KyleTaylor19

Posts: 4
Joined: 9/9/2006
Status: offline

The engine is going into a project car. I will post some pictures and info when it is complete. Hopefully within the month.

I found a "stroker 383 kit" for $700 on eBay that I am going to try out. I am used to working on BMWs and Mercedes so the use of cast parts scares me, but it seems commonplace in domestic engines.

I am really just looking for a mild increase in power, and probably about 10.2:1 compression... with a carb and losts of polishing of the head... and headers

This is a learning experience for me.

(in reply to kcb37)

Post #: 3

RE: 350 -> 383 rebuild - 9/11/2006 11:13:36 PM

KyleTaylor19

Posts: 4
Joined: 9/9/2006
Status: offline

BUY A NEW ONE!!!

Machining, and parts are way more expensive!

(in reply to KyleTaylor19)

Post #: 4

RE: 350 -> 383 rebuild - 9/27/2006 1:01:38 PM

uncle bill

Posts: 289
Joined: 8/25/2006
Status: offline

Originally, the 383 was a 350 block bored .030" oversize, a modified 400 small block crankshaft ( so the main journals would fit in a 350 block ) using 400 connecting rods and 350 pistons. With that, the 400 harmonic damper and flywheel was used and the assembly was balanced to get everything in sync. These days, You can buy aftermarket 383 specific crankshafts etc. A low budget approach is to get a Scat cast crank kit with a complete rotating assembly. The machine work cost on modifing a 400 crank etc., makes an aftermarket setup cheaper and better because the parts are new instead of reconditioned.

(in reply to KyleTaylor19)

Post #: 5