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

being lazy here but

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Old Jun 25, 2006 | 08:45 PM
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St. Jude Donor '06
Default being lazy here but

i am scheduled for a tune-up- bought the ac-delco plugs and wires..what is the correct gap? anyone no off hand...
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Old Jun 25, 2006 | 08:59 PM
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Year make and model? OK we'll ***-U-ME is a Corvette. A C4, even. L83? L98? Year L98? LT1? LT4? LT5? There should be a placard on your radiator/fan housing with the timing spec, plug gap, and vacuum hose routing. Otherwise it is in your FSM and possibly your owners manual. FWIW, the spec for MY engine is .045".

RACE ON!!!
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Old Jun 25, 2006 | 09:02 PM
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St. Jude Donor '06
Default 88 vette and

L-98
350 C.i.
245 Hp
5.7
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Old Jun 26, 2006 | 12:05 AM
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035 for 88 makesure to use anti seize there a lot of fun to change
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Old Jun 26, 2006 | 01:01 AM
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Originally Posted by 5pinball
035 for 88 makesure to use anti seize there a lot of fun to change
Good tip...
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Old Jun 26, 2006 | 01:47 AM
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From: Palmdale, Ca----- 2009 Cyber Gray 4LT A6 F55 452 RWHP 422 RWTQ- RIP 1998 C5 734 RWHP & 585 RWTQ-----
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Stock is 0.35 gap. You could go a little bigger if you want as some go to 0.45 gap, or you could put in a set of Bosch +4's or +2's(which I have and my Vette loves them and no gapping required)

Many will differ in this area, some like the Bosch or NGK or AC Delco it will depend on what you and your Vette like.And yes! use some anti-seize on the threads it will save your butt in the long run!

Thanks, Matt
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