502 Help
August 19th, 2020, 11:01 AM
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502 Help
Trying to figure out HP ratings on a 502 crate engine. I know it’s a Mark V. Cast heads. GM rectangular port aluminum intake. T0422XXW marking on the front of the block. Which puts it as a Tonawanda block built on April 22. What I can’t seem to find info in is the XXW suffix code. Any help?
Thanks in advance.
Thanks in advance.
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