This is oem replacement quality at a fraction of the.

The stock 243 heads are not a big.

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

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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.

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

Webย โ€” so in summary, 862 ls heads offer performance advantages of higher durability, better torque, and easier installation.

When it comes to.

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

Webthis chevy gmc head is a new and improved casting;

They feature smaller valves and ports.

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

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.

Larger intake valves and intake port volume.

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

Smaller intake valves and intake port volume.

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The 862 heads use an extra thick casting,.

This head is completely rebuilt.

Casting number 862 and 706.