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Re: First motor start, terrible knocking
Quote:
Originally Posted by Lefkada
I do have the old heads' casting numbers. I will check these against the "new" heads casting numbers.
Using flat top pistons.
I do not know how much deck clearance I had or what the cam is.
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Ok, compare the numbers and let us know.
What head gasket did you use (thickness)?
The frequency of the noise seems relatively high. My fear would be pistons contacting something but I wouldnt expect it to run long like that if it was.
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'84 K10, SM465, NP208, 3.42 Gears, 33x12.5-15
GM 4 bolt 880 roller block, 062 Vortec Heads
Comp Cams XR258HR-10, MSD Street Fighter HEI
Edelbrock: Performer Intake 2116, 1405 Carb
Long tube headers, 2.5" duals to Flow Master Super 40's
Vortec Engine Build
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