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5.3 heads question and opinion...

This is a discussion on 5.3 heads question and opinion... within the Internal Engine forums, part of the LSx Technical Help Section category; my buddie is selling his 5.3 heads that are allready ported for 800 bucks. His TA ran a 11.1 with ...

  1. #1
    Member pewterzron's Avatar
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    5.3 heads question and opinion...

    my buddie is selling his 5.3 heads that are allready ported for 800 bucks. His TA ran a 11.1 with the cam and a stall. What do you guys think, should I buy them? Some of my buddies are saying no. But I dont know with them being ported allready and they flow real well, does not sound like a bad deal.

    What you guys think?

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    Member NoscamaroSS's Avatar
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    Do you know who ported them?

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    Member pewterzron's Avatar
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    Quote Originally Posted by NoscamaroSS View Post
    Do you know who ported them?
    To my knowledge speed inc in schamuburg IL

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    11.1 is strong especially for 5.3 heads. Any idea what the car weighed or a dyno sheet?

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    Member AKA Speedy's Avatar
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    Quote Originally Posted by pewterzron View Post
    my buddie is selling his 5.3 heads that are allready ported for 800 bucks. His TA ran a 11.1 with the cam and a stall. What do you guys think, should I buy them? Some of my buddies are saying no. But I dont know with them being ported allready and they flow real well, does not sound like a bad deal.

    What you guys think?
    That's Kinda what I did this last fall. I bought a set of Patriot Stage 2.5 5.3L Heads. The car I got mine from ran 9.90's with a cam and N20. I didn't know he had ran N20, but the Speed Shop I bought them at had completely refurbished them replaced the valves, did the P&P, and also a clean up mill on the faces. It came with dual valve springs and titanium retainers the whole sha-bang. When I thought about it they typically run 1300-1400 dollars new and the P&P/refurbishing they did costs $800 by itself, so I went ahead and bought them. they only charged me for the labor ($800).

    Just food for thought.

  6. #6
    Veteran 0rion's Avatar
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    I would buy 'em.

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    Sold: LS1 '85 El Camino ls1camino's Avatar
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    Do they come with Springs and Valves? Are the seals good (how many miles on them)?

    I bought my Ported and Milled 5.3 Heads for $300, but they didn't have Springs or Valves.
    2000 Pontiac Trans Am WS6 M6: 427ci LS3, Built T56, Moser 9" w/ 4.11 Gearing, Full Suspension, and 6-point Cage.
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    Veteran Hi-Po's Avatar
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    I would buy them. See if you cant talk him down a tad maybe for the heck of it. If you brought him 700 cash money, I bet he takes it.

    This assuming, the valves are good, springs are new-ish (I would always replace, unless I could trust the guy), retainers are there, and they are in good shape. Replace the seals anyway, its cheap insurance.

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    Member pewterzron's Avatar
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    Quote Originally Posted by ls1camino View Post
    Do they come with Springs and Valves? Are the seals good (how many miles on them)?

    I bought my Ported and Milled 5.3 Heads for $300, but they didn't have Springs or Valves.
    miles I dont know but the springs come with them. Thinking I am gonna buy it. Thanks guys sounds like a good deal.

  10. #10
    Senior Member JaycenK's Avatar
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    Hell yea buy them if thier not cracked. Almost all of the cost in heads is getting them to flow.

  11. #11
    Member pewterzron's Avatar
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    Great, 5.3 heads on the way!!!!!!!!!!!!! Thanks guys.

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    Senior Member MrMasterCraft's Avatar
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    I wanna see pics of that pewter Z

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