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

When it comes to.

The 862 heads use an extra thick casting,.

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This is oem replacement quality at a fraction of the.

This head is completely rebuilt.

Smaller intake valves and intake port volume.

The stock 243 heads are not a big.

Casting number 862 and 706.

Webthis chevy gmc head is a new and improved casting;

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.

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

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.

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

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.

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

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

Larger intake valves and intake port volume.