Chevy 383 Truck

[RedRock]

I am building a 383 for a Towing-Off Road Truck on the GM short block 383. I am going to use the TBI setup that came with the 95 K1500. I have an Edelbrock 3704 TBI intake, bored Throttle Body, 454 injectors. I have a Comp Cam 12-249-4 cam that I might use.

Would you recommend the Dart 165 heads with this setup? From what I can gather it is going to take a 64cc combustion chamber to get 9.1 compression. How about a computered Cam? Will 1.6 Roller Tip Rockers work with these heads? Low to Mid RPM Torque is more important than High RPM HP.

Thanks

[Mikey R.]

Those heads should work fine IMO. I think you could go as big as 180cc ports. I built an engine similar to yours for an 89 camaro TBI engine, 383 ci and I had the factory roller cam reground. With 1.6 rockers it came out to be a .483"lift, 208@.050" on 112LSA You may not want that much lift, I don't know but with 1.5 rockers its a .453" lift I ran 1.6 comp pro magnums.

[lun40119]

Nice to see you here Mike, I have followed your posts at ST.

[Mikey R.]

Nice to see you here Mike, I have followed your posts at ST.

hey thanks. Hope I didn't steer anybody in the wrong direction...lol

[want-a-be]

I'd go the 180s if it were mine.

Don

[Awesome Bill]

The stock Vortec Heads work very very well with minor work. But the 165s here should not hurt the bottom end too much. I am usually all torque in this application and either would do the job. Everything you have posted should be fine. Check the lbs of those injectors, you may be too big.