Piston & Top End Question

[Johnsonty1024]

What is the best piston i can buy for a stock motor.Whats the average price for a top end rebuild kit? Which brand makes the better product?

 

[duneracerweston]

JE has the best pistons hands down.

As for price, wiseco makes good stuff. But to do a full topend is around 250-350$ if you tear it down and put it back together.

If your needing a topend rebuild I'd go .020 over stick a wiseco in it, a tusk gasket kit, have the jug bored and honed. Have the head cleaned, and new valve seals and valve job done. Then put it together.

JE only makes standard and .080 over pistons. Otherwise I would suggest their pistons

 

[Johnsonty1024]

@duneracerweston : i just wanna put fresh parts in.just a simple tear down clean and put it back together. im not doing the any bore or hones so what do you recommend ? if there is a better or high compression piston kit for the stock bore i will get that...just throw some suggestions my way....

 

[duneracerweston]

Run it till it smokes then bore and hone, wiseco 20 over and call it a day. But if it runs without problem, why rear it down? And I would bet money it will smoke if you put new rings in a old or "used" bore.

I'd wait till it needs tear down before tearing it down.

 

[WV98YFM350]

ditto^^ you have to at least re-hone the stock bore jug or have it re-honed to put the crosshatches back in the cylinder so your rings can seat properly. Your running stock bore yourself aren't ya weston?

 

[duneracerweston]

Yep. Std bore 12:1

 

[WV98YFM350]

whats the comp rate normally on the JE 83? Looking at a std bore high comp rebuild and head work this winter on my spare motor.

 

[duneracerweston]

You can get it in 10.5:1 or 12:1 at std bore I went 12:1

 

[Gen1Pat]

I'd do what Weston did, and run 2 base gaskets with the 12:1 to lower comp just a tad to make it more pump gas friendly. That, or if the head needs to be decked for a good gasket surface, run the 10.5:1.