stripes1976 wrote: ↑

Fri Mar 13, 2015 7:28 am

Yes machining is required. Without you will create a weak seal and a carbon trap. It will seem ok to start then will cause pre ignition later. The JE Pistons are too heavy and as said previously Rev limit is reduced. As with any engine build multiple assembly and checks have to be completed to ensure no failures. I ran deeper valve pockets than Jay. Biggest gains I found was swapping the crank.

stripes1976 wrote: ↑

Mon Nov 02, 2015 9:29 pm

djheard91 wrote:Hey, if you're looking for a 442 kit I've got a set of FZR600 pistons, rings and 76 bored out ready if you're interested. They were originally Stripes' and he's the best guy to ask for any details on them but I don't believe they've been run. I don't know if it'll swap straight into a 73 or not. I tried fitting into my 76 and although it would turn over (by hand) the piston ridge just contacted the head.

Dan, the pistons you have are the second set I had. These had been assembled but never run in an engine with the barrels you have. The other set I had I built into a bored and stroked engine. It appeared that these pistons on a 76a required more work than with the bandit or 73a as from other people's experiences with those engines they never had clearance issues with piston deck heights. Hope that helps.
The pistons rings and pins are assembled and never run in an engine.