"862" cast in head..is this 5.3 or 4.8??
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Joined: Apr 2003
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From: Albuquerque, NM
Originally Posted by blwn327
so they are the same exact head?? just want to make sure ..it is for a friend and I have these that came is a core at work...he wants the 5.3 heads. Thanks!
Might save you some money if someone thinks the 4.8L heads are not worth anything...
862 are 4.8L heads. i just put them on my wife's 99 formy. https://ls1tech.com/forums/generation-iii-internal-engine/209140-vhp-heads.html
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Joined: Apr 2003
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From: Albuquerque, NM
Originally Posted by mrr23
862 are 4.8L heads. i just put them on my wife's 99 formy. https://ls1tech.com/forums/showthread.php?t=209140
well he asked if the 862 was for a 4.8L or 5.3L. on the 862 heads i have, you flip them over and you'll see 4.8L cast into the head under an intake runner. but yes, it's for both motors.
taken from here: http://www.pera.org/CoreTalk/eb120317.htm
The cylinder head for both engines is aluminum with a casting number of 862, however on the deck face area in a small cavity there is a 4.8 cast onto the cylinder head. Do not be confused by this cast number for the cylinder head is for both 4.8L and 5.3L engines.
taken from here: http://www.pera.org/CoreTalk/eb120317.htm
The cylinder head for both engines is aluminum with a casting number of 862, however on the deck face area in a small cavity there is a 4.8 cast onto the cylinder head. Do not be confused by this cast number for the cylinder head is for both 4.8L and 5.3L engines.
Last edited by mrr23; Jan 15, 2005 at 12:28 PM.
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anyways, my 862 heads were ported through www.vincihighperformance.com and 2.02/1.60 ferrea valves were put in.
here's the flow sheet.
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Joined: Apr 2003
Posts: 1,109
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From: Albuquerque, NM
Long story short, the 862 casting is great once you work them over a bit.
