Sealed power H802CP piston question

[big66440]

I was wondering if the H802CP pistons could be used in an 89 4.0 with a 7120 cylinder head? the only difference I was able to see was the H802CP pistons had about a .007" taller compression distance than the correct ones listed for the 1989 4.0 engines  ( part number 677AP). Reason I ask is because the H802CP pistons have a coated skirt, they're cheaper and according to the federal mogul website they are 165 grams lighter per piston/pin combo compared to the 677AP.

[Jeep Driver]

Without looking it up, I doubt the .007 is even the thickness of the head gasket.

I forget what Sealed Power pistons I used.........they are just about all coated anymore.

 

 

I assume you are going with a full set? for weight difference?

 

 

They should be fine.

[johnj92131]

802 piston is hypereutetic while the 677 piston is a cast piston

[cruiser54]

Head gasket is at least .052" thick. I'd use them. 

[Akula69]

Did use them in an 88 rebuild without problems.