Trinity's 420 kit

[97sicshee]

Im thinking of gettn the 420 kit the thing is i like to ride all the time.So how reliable is this.Also how much shit do i gotta go through as far as machining to make this work.

[Ruko]

I had the 420 kit from Trinity until about a month ago. I ran it hard for 2 years and never had a problem. I bought my cyl's used and they were already sleeved so I'm not sure how long it takes to get it done but I've heard Trinity take forever. I also used Trinity's stage 4 head with their big bore domes instead of getting the stock head machined. It all went together very well, all you have to do is match your cases to the porting. It ran great and had a big power increase, but the really nice thing was it was more power all around so it had more pull in the mid which ment less shifting. About the only draw back is you have to get all your parts... pistons, rings etc. from Trinity. I never had a problem so I never needed parts once it was running but I just like to have options.

[MonkeyBoy]

Trinity, last I checked, does not push this engine. They have head sealing issues. If you run a milled stock head, it will have head gasket issues. Not if, but when. I live near Trinity, and know a few people that had this motor, all had head gasket issues.

[cam2]

Trinity, last I checked, does not push this engine. They have head sealing issues. If you run a milled stock head, it will have head gasket issues. Not if, but when. I live near Trinity, and know a few people that had this motor, all had head gasket issues.

359797[/snapback]

do you know what trinity did to resolve this issue? what did the people that you know do to get their heads to seal properly, or did they just sell the setup and start over?

[MonkeyBoy]

They didn't do anything last I heard, but I haven't talked to anyone with one in a while.