Thread: thinking of building 383

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.....you mentioned $4 g's & gathering parts for the project??? If it were me {although it's not}, I'd save up $3200 and get a GM Crate Motor Short Block 383, part #12499106 {example at sdpc2000.com }. Then I'd save up for the necessary remaining parts, i/e heads, manafold, carb, etc..... GM's 383 crate motor with the parts combo they use puts out something like 460 Ft. Lb's of TQ.... Actually I'd purchace all the misc. parts necessary {heads, manafold, etc} before I got the short block. Buying the short block last means that if you assembled the motor quickly you'd still have some warrentee left when you got the motor running..... Bill

ps, you mentioned 400 RWHP??? Remember that Torque is king on the street. And this is even more true in a truck than a car..... And the factory roller cams & roller lifters that GM runs in these motors are not that expensive....

Yeah, I know that torque matters more, but it's easier to talk to people in HP numbers.

I thought about going with a 383 shortblock from GM, although I'm not too hip on the idea of a Mexican block. Also, I may get out for less than the cost of the shortblock.

Here's what I was thinking: http://www.northernautoparts.com/Pro...ctModelId=1674 for the crank and assorted parts.

I could probably trade an old cb750 engine for a useable 350 block.

Maybe some heads like this: http://store.summitracing.com/partde...5&autoview=sku

It's all somewhat in the air right now and probably block-dependent.

Thanks for all the good replies guys!

Originally Posted by BigRedTrucker

Yeah, I know that torque matters more, but it's easier to talk to people in HP numbers.

I thought about going with a 383 shortblock from GM, although I'm not too hip on the idea of a Mexican block. Also, I may get out for less than the cost of the shortblock.

Here's what I was thinking: http://www.northernautoparts.com/Pro...ctModelId=1674 for the crank and assorted parts.

I could probably trade an old cb750 engine for a useable 350 block.

Maybe some heads like this: http://store.summitracing.com/partde...5&autoview=sku

It's all somewhat in the air right now and probably block-dependent.

Thanks for all the good replies guys!

Rotating assembly looks good.
The 195 cc heads are way to large.
I would look at a cylinder head that has a port volume of 170 cc or less.

http://store.summitracing.com/partde...5&autoview=sku

How about them there? It's got a 67 cc chamber which should lower compression, maybe allowing me to run on regular or plus? Maybe you should tell me what to buy lol!

Thanks erik for your help!

Originally Posted by billlsbird

...you mentioned $4 g's & gathering parts for the project??? If it were me {although it's not}, I'd save up $3200 and get a GM Crate Motor Short Block 383, part #12499106 {example at sdpc2000.com }. Then I'd save up for the necessary remaining parts, i/e heads, manafold, carb, etc...

I'm not trying to hijack this thread, but I have a question. Could you get the 383 short block and put the heads, intake and EFI (all the extras) from my stock 5.7L vortec on it? Would that be compatible?

Keep us informed of your 383 build...I'm keeping an eye on this thread!