273 hipo piston ?

[Gator77]

I bought some 273 engine parts ,I received a set of part 2465661 pistons wondering what compression ratio is with closed chamber heads and is there enough valve clearance to run them.thank you

 

[66fs]

pictures? oversize?

 

[AJ/FormS]

I'd make 'em work, cuz the alternative sucks.

 

[Gator77]

I purchased 2 blocks one is a standard bore the other has been bored over I have to measure it.

 

[Gator77]

I seethat there dished out for head clearance

 

[Plymouth 65]

I believe there 10.5:1 with stock closed chamber heads. 65'

 

[66fs]

I believe there 10.5:1 with stock closed chamber heads. 65'

1965 through 1967 Commando and Charger 273's

 

[Gator77]

I think so too after researching a little more measured them 3.625 does that mean there standard pistons.thanks for info

 

[AJ/FormS]

Hyup
3.630 bore, would get you .005 skirt; loose for cast but about right for forged. Waaaay too loose for hypers but hypers weren't around in the 60s,lol

 

[toolmanmike]

1965 through 1967 Commando and Charger 273's

Yepper

 

[Wyrmrider]

If they are over a little just knurl them on the non thrust side and run em

 

[Gator77]

I'll have to find out if my machinist has a knurling machine..great info