Hey guys, I'm new here, and posting off my phone so 8 hope this is the right area. Please forgive typos az well lol. Alright heres what I have.85 or somewhere there, 350 four bolt main. It's knocking so I need to rebuild. Thesis where it gets complicated. I have a set of double hump heads that have been saved to 60 cc. So I'm going to have city motors rebuild it but I need some help on the technical things like how deep of a dish pisto. do I need for pump gas and if I need new pushrods, and also I'm at a loss for rockers. What size should I get? Anyways any help Is greatly appreciated. I'm sure yall will need moreinfo so just let me know. Thanks guys.

 

What is the main use of the motor? Id say to run pump gas with those iron heads your compression ratio will have to be 9.5; 1 or lower, also what cam are you goin to be running? As for pistons if the CR is 10;1 with 64cc heads then it will be roughly 10.4;1 with the 60cc. About every 1cc equals .1 on your CR on small blocks.

 

The motor is in my truck. It's just a daily driber. Right now Im running headers and an aluminum intake and I rebuilt the distributor with one of those advance kits that changes the springs. As far as cam I'm not sure exactly what I need in that aspect. I'd like something with like a 112 separation to give it a lope at idle. Yet like 230 on intake and exhaust so it still hws low end power. Giveeme some ideas though cause I could be making mywelf look like a fool. All I know about this is what I've read.

 

A good cam would probably be edlebrocks performer for a daily driver or something similar to it. It builds power from idle to 5500. It probably wont give your truck a hard lope but you will be able to tell it has a cam.