Here is another MRL Performance Big Block
The basic run down
400 stroked to 470
Eddy victor heads cleaned up slightly
Forged crank/rod/pistons
Lunati solid roller cam/lifters/springs/ret/locks
Milodon Road Race oil pan
Ishihara-Johnson Crank Scraper
Hughes rockers
Custom Pushrods made In House
RPM intake
Full Mallory ignition system
BIGS 950 stage 5 plus
MRL Performance top end oiling mod
Final was
600HP @ 5700
603TQ @ 4000 :burnout:
This thing had 590+ TQ from 3000-5100rpm Sweet
The BSFC was .500-.412 the whole run A/F was high 11's low 12's.
All testing was done at 170* coolant temp and 34* total timing
Idled well at 900-1000rpm and pulled 12 inches of vacuum