Originally Posted by ultimatewarrior1
THE THING IS I HAVE A GM 502 BLOCK NOT A AFTER MARKET BLOCK .I THOUGHT I WOULD NEED A AFTER MARKET BLOCK TO GET 572ci ISN'T THE LIMIT ON THE GM BLOCK 555-565 I'M NOT DEAD SET ON 540
Which GM 502 is it, a Bowtie ?
Like Parker mentioned a motor that spins that high will need very good parts to stay alive. Titanium valves would also be on that list.