862 upgrade?
Thread Starter
Registered User
Joined: May 2018
Posts: 3
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862 upgrade? So the plan was to do a 5.3 swap in my 67 camaro , all I was going to do was put a cam in and run it! Well I found water in a couple of cylinders, so I installed new flat top Pistons , a TSP 220r cam . I cannot find 243 or 799 heads and when I do they want big money right now! My question is it worth putting money into the 862 and having a 2 inch valve installed ? Or should I just run them ? Would I really gain that much ?
TECH Senior Member
Joined: Jun 2016
Posts: 22,290
Likes: 3,615
From: Central Cal.
You should have NO trouble finding 243/799 heads as they come on nearly all Gen IV 5.3L truck engines, which are filling wrecking yards as we speak....
What year is the 5.3 you have?
What year is the 5.3 you have?
TECH Senior Member
Joined: Jun 2016
Posts: 22,290
Likes: 3,615
From: Central Cal.
When you go into a wrecking yard, look for 2007-up trucks w/5.3 engines. Most if not all heads on those trucks are 799/243. They should not be that expensive, as common as they are.
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