I order a remanufactured performance engine through Checker Performance based out of Kailua, Hawaii. Within 2 months my engine would not stop over heating, and it constantly snapped rocker studs. Ive been through 6-8 rocker studs now and 2 valve springs that have been shattered. For years i've tried to get ahold of them to but Checker Performance stopped using them as a supplier and there doesnt seem to be a number on the internet that works. Theres my 2 cents. The engine was a H.O. 355ci engine 330hp and 350lbs torque i believe for my 86 IROC-z. Do not use them. And the engine has leaked oil from day one from some where in the front.
Dan
Kailua, Hawaii
Now in Vegas
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