951 engine noise

[VINCE_g]

Hi everybody.

Installed a 951 in a customer's 98 GTX. He complained that the engine makes more noise than the original. He brought it back and i listened to it -it was noisey (I think). Sounds like the pistons are making noise/rattling. Sounds like boat w/Wiseco's. Is this normal?
Boat runs good, good compression, getting about 6800+/-.

Thanks

[Technical Support]

I would run it due to the good compression and power. Does the engine vibrate more than normal?

[VINCE_g]

Runs good, no noticeable vibration. I don't have another 951 boat around here right now to compare it against. He does have some hours on it (10ish), so I kinda figure it would of blown uy by now :D .
Will the engine pick-up RPMs as it breaks in further or is that about it.

Thanks for the help.

Vince

[Technical Support]

usually it may pick up a little but after 10 hours there should be no difference.