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i don't require 12.5:1 compression just want to use the setup since my dad ran this combo a long time ago. Yeah Little worried about the intake gaskets with the thicker head gaskets. I'll see if i can put the J heads on to see if they fit with the .040 head gaskets then make the decision.

It’s a balanced assembly. I had a shop check it. They also checked the block before punching it out to fit the .040 pistons. Yes, it looks worse in the pic than it is. Mostly discoloration. It’s clean and true. This was a promise to my dad kind of a tribute. The parts are matched. I just wanted...

yes its a lot of meat, this motor has a lot of memories with my dad that's why I'm trying to use the parts there. you are right on the clay that might be the first step.

good point i was planning on running EFI holley sniper. Ive had good luck with them in the past plus i have a new one on the shelf.

yes its the stock stroke. that just seams like a huge head gasket but looks like i need a t least .080

i put the pics below.

i dont mind the race fuel due to the memories this motor has to me.

thanks but the heads you refer to have less clearance then the ones i have see the attached pics. i have both sets of heads.

Here’s a picture of the Pistons.

not the pistons are old arias according to Arias they must of been custom built since they don't have .040 over. I can get some pics tonight

Hello All, I have a 340 I purchased several years ago as a short block. I was told it was 12.5:1 pistons they are .040 over. I've cleaned it and am ready to complete for my duster. the issue is I purchased a set of the 340 Edelbrock Heads (60179) with the 65cc combustion chamber i am using...