1988 GMC C1500 - Z06 Package!

[PolarBear]

Lot's of finish work to do, but you get the idea.

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[PolarBear]

Pulled the headers out of the box, welded some Hedman ball and socket collectors on. Plan is to run a 3" dual exhaust with x-pipe.

First set of Schoenfeld headers I've had to massage a tube on. Pretty sure it's due to this truck being a first year and engine is more to the passenger side, stock.

I've noticed out of the hundreds of these trucks I've parted out, 88-89 seems to be further passenger offset on the engine, than a 90-98 truck. Almost to the tune of 3/8".

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[Supercharged111]

You gonna weld those flanges on? Mine used to loosen up every few months until I burned the flanges right to the header.

 

[PolarBear]

You gonna weld those flanges on? Mine used to loosen up every few months until I burned the flanges right to the header.

I don't plan on it. They were great on the 90 and never leaked.

 

[0xDEADBEEF]

I just picked up a used set of those headers and the guy was telling me the same thing. I didn't ask what year he had.

He did the same thing you did, much uglier though.

 

[PolarBear]

Alright, took some time Friday evening after shutting the shop down for the day and disassembled the LS6 shortblock.

Fully expecting to find some catastrophic damage, that was proof of the reasoning for the engine being pulled for a "knock".

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There was absolutely nothing wrong with this shortblock, it was 100% without a doubt, another set of Texas Speed "LS7" style lifters killing an engine. All of the bearings were super clean, rod, main, cam and the bores were indicative of a true 55,000 mile engine.

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Delivered it to the machine shop Saturday morning, should be back sometime in May as a shortblock.

 

[PolarBear]

Forgot to mention... picked up this 89 rcsb v6/5speed truck yesterday for $600. Going to part it out, most likely.

Has a brand new rear axle with 3.73s and an aftermarket posi in it.

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[PolarBear]

6th times the charm? Replacement hood unexpectedly arrived this morning.

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This shitbox finally has a hood!

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[PolarBear]

Decided to disassemble, clean, paint and reassemble the driveshaft, before getting started on welding an exhaust up.

Interesting fact, this truck shows 330k on the odometer, this driveshaft was still tight on the joints and had the oem plastic injection retainers in the yokes, still.

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[Supercharged111]

No aluminium for you?