Originally Posted by gregsdart
Originally Posted by B3422W5
Originally Posted by gregsdart
I could use this new ( to me) crank in the megablock i have. I would need to find a set of 2.375 rod bearing h beams 6.80 long. 572 cubes, would use the pistons and rings that were 8n the first 550 (megablock) motor. Or i could grind the crank to 4.625 with 2.2 bearings and have a 588.



Seems to me the key to going faster is better heads, or weight.
You have -1 heads, correct?
Sell them and buy better heads if you want to go faster, otherwise your peeling a peanut

572-13 will be on the aluminum block motor, 385cnc and finish ported to get some more flow. Vern l, member here, made 1065 hp with 572-13 heads. It probably was a 604.


Nice upgrade. Predators?

69 Dart GTS A4 Silver All steel, flat factory hood, 3360race weight
418 BPE factory replacement headed stroker, 565 lift solid cam
Best so far, 10.40 @127 1/4
1.41 best 60 foot
6.60 at 103.90 1/8