Originally Posted by Dean Pearson
I have an 85 454 out of a suburban I plan to use in my Studebaker project.
It has cast iron rectangular port heads and the rest is stock.
What will give me the most bang for the buck as far as bumping up the H.P. ??? Thanks , Dean.
Run pistons that will give you 9.5:1 compression ratio. ( reference your chamber volume and deck height )
Get a mid-range torque cam. Flat-tappet hydraulic that makes power from 1500-5500. ( matching lifters too! )
Edelbrock Performer RPM intake with a 750-800cfm carb.
Headers. ( Even shorty's with dual exhaust will help. ) Run 2 1/2" exhaust pipe and some good mufflers.
MSD 6AL ignition would be very nice, but at least run an HEI.
Automatic tranny? Run a mild stall converter. Like a 2,000-2,500 rpm.
Do those things, and you will like it.
Shouldn't cost too much money. Good bang for the buck.
One more trick: calculate your rear-end gear ratio based on your tranny final drive ratio, your rear tire diameter, and your max engine RPM's. Choose the optimal ring & pinion set. Rear-end gears can make a huge difference in how the vehicle accelerates.