Weblooking to boost your chevy 5. 3l v8 engine's performance?

These heads come on gmc and chevrolet trucks and suv's.

Webpart 6 of the ls 5. 3l build will cover installation of the 862 aluminum heads, lifters, pushrods, and rocker arms.

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Webwe have a few options you can purchase such as a pair of stage 1, stage 2, stage 3, or stage 4 ls 706/862 cathedral casting 5 axis cnc porting with stainless valves and wp.

This head is completely rebuilt.

Casting number 862 and 706.

Ls Ls1 Ls2 Ls3 Ls6 Ls7 Lsx 862 Cylinder Heads Set 4.8 5.3 5.7 6.0 6.2

The cylinder head is either sold complete with all new parts or bare ;

This is oem replacement quality at a fraction of the.

When it comes to.

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Featuring. 650 springs and 2. 00/1. 57 valves, our all.

The 862 heads use an extra thick casting,.

Larger intake valves and intake port volume.

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The stock 243 heads are not a big.

Webthis chevy gmc head is a new and improved casting;

They feature smaller valves and ports.

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Web — so in summary, 862 ls heads offer performance advantages of higher durability, better torque, and easier installation.

Smaller intake valves and intake port volume.

I have a 99 5. 3 that's going in my 02 silverado that currently has a 4. 8 and the 5. 3 has 862 heads and i found a set of 799 heads on a 5. 3 in a savannah.