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08-22-2016 08:13 PM #3
1. Far too much cam for the static compression ratio. Motor needs 248 intake duration with that SCR, not 278.
2. You can't. No, they're not. Best affordable iron heads are the L31's. Read about them here....
http://www.crankshaftcoalition.com/w..._cylinder_head
3. 1972 was the first year of dismal static compression ratios, large piston crown dishes and awful combustion chambers. You will need to change pistons to make a base for power. Then you'll need some decent heads. How much can you afford for new or used aluminum heads?
With today's crummy fuels, iron-headed motors should be limited to no more than 9.5:1 SCR. Aluminum headed motors should be limited to 10.5:1.
Here are some other tutorials that you might enjoy reading....I wrote them for the Crankshaft Coalition Wiki....
http://www.crankshaftcoalition.com/w...cooling_system
http://www.crankshaftcoalition.com/w..._compatibility
http://www.crankshaftcoalition.com/w...ips_and_tricks
http://www.crankshaftcoalition.com/w..._Dimitri_Elgin
http://www.crankshaftcoalition.com/w...op_dead_center
http://www.crankshaftcoalition.com/w...m_combinations
.PLANET EARTH, INSANE ASYLUM FOR THE UNIVERSE.





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A belated Happy 78th Birthday Roger Spears
Belated Happy Birthday