PRC 220cc 5.3L Stage 2.5 CNC Ported Heads

ok, and what gains will i see with the aforementioned mods?

SOLD

thank you
brad




(it was first come first serve basis)

Quote:

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Originally Posted by Melissa@NelsonPerformance

SOLD

thanks you
brad




(it was first come first serve basis)

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thank you melissa! :hyper2:

not all the 5.3l are the same. the LM7, L59, LM4 are 9.5 and the L33 is 9.9:1

the 4.8 is 9.5:1
the LQ4 is 9.4:1
the LQ9 is 10:1