You can have deck plates built and build as big as you want! :wink: The tractor pulling guys do it all the time. If any way possble do not use a 502 block. My last 548 I used a 502 block. The motor was 858hp and held up good, but I almost couldn't give it away because of the poor quaility of the GM block. You can build a 565 to over 1,000hp , but the 502 block will not hold up. 900+hp and you are riding on borrowed time!!
No matter what there is no substitute for more inches!!! lol