Biggest bore for a QL9
05-30-2006, 06:42 PM
#2
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Its LQ9 or LQ4, they are the same block, same 317 heads, and same Crankshaft. The only difference is the Rods and Pistons. The LQ9 has a flat top piston for increased CR and the LQ4 is a slightly dished piston. LQ9 rods look a lot stronger than the LQ4 Rods.
And the answer to your question is how far do you want to go? they can be safely bored to .030 over, and if your lucky and a little crazy and you want to push it you may be able to go .060 over. No matter what, sonic test to see how far you can go to avoid sleeving it.
And the answer to your question is how far do you want to go? they can be safely bored to .030 over, and if your lucky and a little crazy and you want to push it you may be able to go .060 over. No matter what, sonic test to see how far you can go to avoid sleeving it.
05-30-2006, 06:55 PM
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Its LQ not QL
4.8 LR4 = 294ci (3.779 bore x 3.270 stroke)
5.3 LM7 = 325ci (3.779 bore x 3.622 stroke)
5.7 LS1 = 346ci (3.900 bore x 3.622 stroke)
6.0 LQ4/LQ9 = 364ci (4.000 bore x 3.622 stroke)
BTW 5.3 and 4.8 are the same blocks, the 5.3 is just a 4.8 with the 6.0 crank(stroked 4.8)
4.8 LR4 = 294ci (3.779 bore x 3.270 stroke)
5.3 LM7 = 325ci (3.779 bore x 3.622 stroke)
5.7 LS1 = 346ci (3.900 bore x 3.622 stroke)
6.0 LQ4/LQ9 = 364ci (4.000 bore x 3.622 stroke)
BTW 5.3 and 4.8 are the same blocks, the 5.3 is just a 4.8 with the 6.0 crank(stroked 4.8)
