have stated the facts about positives and ngitives about building one or another. but say a engine that puts out 450 hp and 500 lb torque, which would be a cheaper build? Then if both are built to hold nitrous is one that would be better to build for nitrous use? sorry if this is confusing

 

if you can find a rebuildable 400 at a good price it would be better.to build a 383 you will need a modified 400 crank or an aftermarket crank

 

"If" you find a rebuildable 400, don't ruin the crank by having it reground for the 350 block. Just build the 400. If you want to build a 383 then buy an aftermarket crank.

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Follow my racing progress on Stephen's racing page
and check out the race car

87 IROC-Z Pro ET Bracket Race Car
383 stroker (carbed) with double hump cast iron heads and pump gas
461 Big Block installed and ready for the 2001 racing season

Best results before the 383 blew up
Best ET on a time slip: 11.857 altitude corrected to 11.163
Best MPH on a time slip: 117.87 altitude corrected to 126.10
Altitude corrected rear wheel HP based on power to weight ratio: 476.5
Best 60 foot: 1.662

Racing at 3500 feet elevation but most race days it's over 5000 feet density altitude!
Member of the Calgary Drag Racing Association

87 IROC bracket car, 91 454SS daily driver, 95 Homebuilt Harley