I searched 383 in this forum and got A LOT of awesome information. From my understanding ported and polished LT1 heads CANT feed the 383 properly(they work but not at max hp/trq). Will a ported and polished LT4 head and LT4 intake manifold combo suffice? More expensive but looking to get those either way. Any help would be appreciated.

Looking to be enlightened,
Dan

 

Not exactly true, I had mine Ported & Polished and bigger valves and the combustion chambers opened up .They work fine if you go blown

 

I agree.

Although LT1 heads might not flow well enough (or what some ppl consider "well enough") to feed a high horsepower LT1, a complete porting job on stock heads can definitely be a great benefit to a stroker motor.

Some ppl will go with aftermarket castings, such as AFRs, in order to reach the really high horsepower levels. If u look at the flow numbers on LT4 heads compared to LT1 heads, they are not all that different. If ur on a reasonable budget, I would just get a comprehensive porting of ur LT1 heads, with a valve job and u should see a significant gain in power.

 

I am not looking for blown or nitrous. Daily driven 450hp N/A would be fine for me. Would a LT4 383 work out? I am putting together a parts list before I get to buying.