5.3 Max overbore.......
#5
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Firefighter is correct. 99 mm or 3.897" same as the 5.7 liter block. The 5.3 and 5.7 aluminum blocks are identical. GM used a thicker wall sleeve to reduce the bore diameter on the 5.3. I have machined several of these blocks for Darton MID sleeves.
Steve
Steve
__________________
Steve Demirjian
Race Engine Development
Oceanside, Ca.
760-630-0450
web: www.raceenginedevelopment.com/
e-mail: race-engine-development@***.net
Steve Demirjian
Race Engine Development
Oceanside, Ca.
760-630-0450
web: www.raceenginedevelopment.com/
e-mail: race-engine-development@***.net