L33 versus Lh6
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Teching In
Joined: Jul 2012
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L33 versus Lh6 I am watching for an aluminum 5.3l for a rock crawler swap.
In regards to the L33 and LH6 is one desirable over the other?
A cam swap and LS6 intake is a must and I understand the necessity of swapping out the DOD crap on the LH6. I guess the question is for the additional expense of swapping all of the DOD out, is the LH6's updates to the block, wrist pins etc. worth the added hassle of the DOD, or should I stick with a L33?
In regards to the L33 and LH6 is one desirable over the other?
A cam swap and LS6 intake is a must and I understand the necessity of swapping out the DOD crap on the LH6. I guess the question is for the additional expense of swapping all of the DOD out, is the LH6's updates to the block, wrist pins etc. worth the added hassle of the DOD, or should I stick with a L33?
TECH Fanatic
Joined: Jul 2005
Posts: 1,685
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From: Beebe, Arkansas
The L33 is more desirable. Its a Gen III. The LH6 is a Gen IV with active fuel management. So you have to pull the heads to switch the AFM (DOD) lifters out. SO extra cost. But it should be a three bolt cam gear on it so you can reuse the cam gear with the gear for front cam sensor.
The L33 has floating pistons as well and has the 799/243 heads with flat tops. The LH6 has the same heads and flat tops. But it will need to have the oil pan changed as it has a front sump. The LH6 also has the larger 87mm TB intake.
The L33 has floating pistons as well and has the 799/243 heads with flat tops. The LH6 has the same heads and flat tops. But it will need to have the oil pan changed as it has a front sump. The LH6 also has the larger 87mm TB intake.
Last edited by Bo185; Jul 6, 2012 at 03:14 PM.
TECH Fanatic
Joined: Jul 2005
Posts: 1,685
Likes: 7
From: Beebe, Arkansas
The plus on the Gen IV is it LS3 or L92 ready so if you want to upgrade later it's pretty much bolt in vs having to re-harness the L33.
