Cheepy Three-Sixty build
Do you dyno test for anyone other than your own in house builds? The reason I ask is --Have you tested many Chev's--particular the beloved 383 Chev? I had an opportunity as recent as 2 weeks ago to test one--Edelbrock heads 170cc, roller rockers, RPM Air-gap,Schoenfeld 1 5/8-1 3/4" sprint headers, pumpgas, Edelbrock RPM hyd flat cam(234/244 .488/.510?). With the 750 on this engine it made 409 HP/442 tq, His carb 400 HP/432 TQ. The customer takes it home, installs it and reports that it's AWESOME--which I do like to hear.
What I tend to take away from this is: 1. 383 Chev's are a formidable engine package.
2. 360's (stock stroke) Often equal or even exceed similarly built 383's.
Of course you can throw money at either engine 'till you are blue in the face but that is not what this build or this thread is about. I do wonder how a 383 Chev with some Vortec heads built along these lines would fare. J.Rob
We'll test anyone's engine for $550/day. But in a town where the sign reads "Population 1081" before the big mine layoff, it's mostly our own stuff.
I have a 350 core with some Vortec heads sitting out back. Never tested them though.
A while back I alluded to a 383 Chevy we built. Local customer requested 450 HP for his show truck because he could get that on a budget of X$ from an outfit advertising on the internet.
Ah, well, we kept to the budget, and.............with a carburetor he got 392 LB-FT @ 3,000 rpm, 484 LB-FT @ 5,000 rpm and 518 HP @ 5,800-6,000 rpm
With the Holley Terminator FI not fully through it's learning curve, 399 LB-FT @ 3,000 rpm, 472 LB-FT @ 4,900 rpm and 511 HP @ 5,800 RPM.
10.1:1 compression, Pump gas, Victor Jr intake, AFR 1034 heads, custom street solid roller 236/242 .564/.570 113 LSA 109 ICL, 1.5 Scorpion roller rockers, and using the long tube headers for his truck.
I'm still a 383 Chevy novice because that is the sum total of my 383 experience.
