5.3 w/ 799 heads milling question
06-13-2016, 09:56 AM
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5.3 w/ 799 heads milling question hello everyone and thanks for adding me to the forum. my name is dustin from granite city, il
im currently gathering parts for my first ls build, ive done several sbc's in the past but not ls series.
i ran into a great deal on a complete 5.3 with harness and planning to put it in my jeep wrangler, but i have a couple build question and hopefully someone can help
plan is to bore my 5.3 to fit ls1 5.7 pistons, " i have a set sitting in the garage"
i want to mill my 799 heads to raise my compression up to 10:5:1 ish
how much do i have the heads milled and still run the good ls6 head gaskets.
i want to achive as much low end torque as possible from this motor.
planning on doing the above work and getting a vinci truck cam kit .
ive talked with rodger from vinci and he recommended his "chopper cam"
.551/ .551 - 112 lsa- dur@.004 272/280--- dur@.050 210/218
not wanting to go crazy on this build, it will be streeted and offroaded.
im mostly concerned about raising the compression. thanks in advance- dustin
im currently gathering parts for my first ls build, ive done several sbc's in the past but not ls series.
i ran into a great deal on a complete 5.3 with harness and planning to put it in my jeep wrangler, but i have a couple build question and hopefully someone can help
plan is to bore my 5.3 to fit ls1 5.7 pistons, " i have a set sitting in the garage"
i want to mill my 799 heads to raise my compression up to 10:5:1 ish
how much do i have the heads milled and still run the good ls6 head gaskets.
i want to achive as much low end torque as possible from this motor.
planning on doing the above work and getting a vinci truck cam kit .
ive talked with rodger from vinci and he recommended his "chopper cam"
.551/ .551 - 112 lsa- dur@.004 272/280--- dur@.050 210/218
not wanting to go crazy on this build, it will be streeted and offroaded.
im mostly concerned about raising the compression. thanks in advance- dustin
06-13-2016, 04:05 PM
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Youd have to do a compression calculator for exact answers but just guessing off the top of my head 25 cut should put you around 11 to 1. Can still run a pretty decent sized cam too. Mine are currently milled 40.
06-13-2016, 04:15 PM
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The cam is listed above. .551/.551 lift
It will be a pump gas engine, that being said, I'm not sure if 11:1 is to high or not. Assuming this engine is basically a ls1 once I bore it, from doing some forum reading it looks like a ls1 with 799 heads should be 10:1.
I just don't want to mill and be way to high
It will be a pump gas engine, that being said, I'm not sure if 11:1 is to high or not. Assuming this engine is basically a ls1 once I bore it, from doing some forum reading it looks like a ls1 with 799 heads should be 10:1.
I just don't want to mill and be way to high
06-13-2016, 04:21 PM
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11 is not too high. Lots of people are with 11:1 or better and with bigger cams than that baby cam without any street issues. When I was stock LS1 displacement I was 11:1 and a .612/.600 228/232 111 lsa on 93 pump gas
