mattsny83 Posted April 9, 2009 Report Share Posted April 9, 2009 I am wanting to put a 4mm crank with long rods and 60 to 80 over blaster pistons with stock clyinders and port them and run off achool. How much horespower should i see ???? Quote Link to comment Share on other sites More sharing options...
shanYE west Posted April 9, 2009 Report Share Posted April 9, 2009 you dont want to bore your cylinders anymore then you have to.. The gains are minimal and not worth taking away cylinder life. But.. a properly ported and setup stock cylinder 4mil should be anywhere from 80-90hp. There is some stock stroke 350's making 90+hp on alky.. but.. that porting is very pricey... Quote Link to comment Share on other sites More sharing options...
mattsny83 Posted April 9, 2009 Author Report Share Posted April 9, 2009 you dont want to bore your cylinders anymore then you have to.. The gains are minimal and not worth taking away cylinder life. But.. a properly ported and setup stock cylinder 4mil should be anywhere from 80-90hp. There is some stock stroke 350's making 90+hp on alky.. but.. that porting is very pricey... What size Carbs should I run Quote Link to comment Share on other sites More sharing options...
mattsny83 Posted April 9, 2009 Author Report Share Posted April 9, 2009 What size Carbs should I run I have a stage IV cool head can i run that are do i need a new one thanks for all the help Quote Link to comment Share on other sites More sharing options...
00tbanshee Posted April 9, 2009 Report Share Posted April 9, 2009 talk to the guy doing the port work.he should beable to let you know the carb size and etc.if he knows what he's doing Quote Link to comment Share on other sites More sharing options...
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