Deck Clearance on stock '73 360

[Bill Duster]

I'm putting my brother-in-laws 76 Duster back together for him. I have a '73 360 from an RV of some type that is supposed to only have 22k miles on it.

I have it down to the shortblock, and was hoping to go no farther, but I'm measuring .105" deck clearance and a .075 piston dish on top of that.

I haven't cc'd the heads yet, but if they are in the middle of the spec, at 71cc, thats aprox 7.5:1 CR. That's like lawnmower territory and will not do.

Is that typical for RV Truck engines? Are the car engines any different?

Thanks.

 

[RustyRatRod]

Nope, the car engines are the same. Welcome to Mopar.

 

[bbrroowwnn]

mopars are known for the pistons being deep down in the holes compared to other brand x cars....deck the block

 

[Jessearent]

mopars are known for the pistons being deep down in the holes compared to other brand x cars....deck the block

I say buy a 3.79" stroke crank and use stock pistons. Or a 4" stroke crank? I haven't verified it will work yet with stock pistons. And can't get a sure answer from anyone here. I will just have measure that ridge the from bottom to top of deck before the machine shop starts the bore. Good luck. Sincerely jj