Re: Police Motor ID?
I realize that except for the oil cooler there is no difference(and as yet I don't even know whether that is functional or bypassed). My concern is that since the motor has been changed and so far I have not found the engine sticker I do not know exactly what year motor this is. For example if its from an older car it won't have the PI heads. If its newer it would. I don't want to invest in PI heads and manifold if it already has them. Since this car has some GO when you hit the pedal I'm kinda hoping it already has the PI heads. I was wondering if there are any telltale signs to help ID if these are PI heads. Bolt bosses(like in a SM Chevy), casting numbers and location or other significant and relevant outward appearances. Short of yanking the intake manifold to take a peek at the ports what else should I look for? Thanks for the input.
Just look at the depth of the intake manifold in the vally. A PI manifold will almost touch the center of the block, a NPI will not be very close to touching. Aside from the build date on the driver side valve cover, thats about it. Other identifiers are too difficult to get to.
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