Quote Originally Posted by wbute View Post
Blocker do some research into the old Commodore cup engines. I just read they made around 300hp using red motor heads. 300 hp from a 253 is not too bad at all.
Here is a link with some info.

http://cams.com.au/en/Common/Bulleti...gulations.ashx
Depending on how your memory is back in the early 90s there was an article done in street machine where they built and gave away a 400hp 253

Chris Hillman from Radical Innovations (Yennora NSW) done it
Chris has retired and moved to central coast last i saw him