C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

LTx head guide plates

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Old Jul 29, 2005 | 04:25 PM
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Default LTx head guide plates

Anyone use an aftermarket guide plates on their stock LTx heads? If so who made your guide plates and what part number? Comp 4808 do not work
Opps I figured it out, for those that need to know, use GM Part Number 14011051. No one makes an aftermarket guide plate that works on GM LTx heads.

Last edited by tjwong; Jul 29, 2005 at 04:50 PM.
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Old Jul 29, 2005 | 05:40 PM
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Originally Posted by tjwong
Anyone use an aftermarket guide plates on their stock LTx heads? If so who made your guide plates and what part number? Comp 4808 do not work
Opps I figured it out, for those that need to know, use GM Part Number 14011051. No one makes an aftermarket guide plate that works on GM LTx heads.
I have aftermarket LTx guideplates that work great...if I can't find the receipt that I'll need to pull the valve covers to see what they are!!

EDIT: found the receipt, they are Manley part# 42355
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Old Jul 29, 2005 | 06:22 PM
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I've got a set that came on some used LT1 heads. They are CC but I'd have to dig them up to find out what part# they are.
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Old Jul 29, 2005 | 06:33 PM
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Try Isky adjustable guideplates; they suck but once you set them where you want them you can weld them together.
-Jeb
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Old Jul 29, 2005 | 10:50 PM
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Originally Posted by jburnett
Try Isky adjustable guideplates; they suck but once you set them where you want them you can weld them together.
-Jeb
Hey Jeb, I have used many Isky adjustable guide plates In fact this week alone I have gone through three sets. I just figured that there had to be a standard off the shelf set of them available that were cheap, as the Iskys are about $45 and the GM parts are less than $2 per plate.
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Old Jul 30, 2005 | 01:30 AM
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GM part # 14011051 should work. I'll be using these shortly in a future head/cam upgrade.
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Old Jul 30, 2005 | 11:55 PM
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Last H&C swap, I went w/ the Isky adjustables...major PITA and we still didn't get 'em right. With my current H&C upgrades, I changed to the GM #14011051. Hopefully next weekend I'll be measuring the pushrods and checking the valvetrain.
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