Lt1/L98 headers difference?

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Sep 7, 2004 | 11:26 PM

Hippiehead025

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Melting Slicks

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From: walkersville md

Lt1/L98 headers difference?

whats the difference? the port placement looks the same, aswell as the boltp attern......

Sep 7, 2004 | 11:32 PM

chriswtx

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From: San Marcos Texas

Same, except the L98 has air tubes(emission stuff) in it.

Sep 7, 2004 | 11:44 PM

vader86

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From: Athens AL

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Both will bolt to the SBC head.

They dont drop down the same way and they wouldnt merge to the rest of the exhaust the same, which means youll be cutting and welding.

Sep 8, 2004 | 12:12 AM

CentralCoaster

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From: San Diego , CA Double Yellow DirtBags 1985..Z51..6-speed

Quote:

Originally Posted by vader86

Both will bolt to the SBC head.

They dont drop down the same way and they wouldnt merge to the rest of the exhaust the same, which means youll be cutting and welding.

Anybody have pics of either? Seems to me the only difference is the... uh.... I don't know really.

What the hell is the difference? Same exhaust ports, same engine placement, same chassis, same tranny....

Sep 8, 2004 | 12:52 AM

Corvette Kid

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From: Good health is merely the slowest possible rate at which one can die

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The LT1 headers I bought are especially designed for the D port heads.

Sep 8, 2004 | 08:46 AM

Fr Guido Sarducci

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From: Ignore this post

St. Jude Donor '03

I have TPIS LT1 headers and Ypipe on my 85 L98, the only difference is the air fittings, absolutely no clearance issues whatsoever

Sep 8, 2004 | 10:17 AM

Wheelman

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From: Less Talk, More WOT | Houston TX

Quote:

Originally Posted by Corvette Kid NC

The LT1 headers I bought are especially designed for the D port heads.

Late L98 Heads are d-port style heads too

Sep 8, 2004 | 05:33 PM

Hippiehead025

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Melting Slicks

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From: walkersville md

i have a 90, and im doin a custom exhuast, so it dont bother me. so Lt's have no emissions hookups im guessin? if i got pianted ones neway it wouldnt be hard to make bungs for air tubes ( Md emissions suck)

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Sep 8, 2004 | 08:15 PM

Corvette Kid

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From: Good health is merely the slowest possible rate at which one can die

St. Jude Donor '04-'05-'06-'07

Quote:

Originally Posted by Wheelman

Late L98 Heads are d-port style heads too

I also have a set of L98 headers that are not D-port so be aware that both kinds are out there for those for whom it matters or care. And yes Hippie my LT1 headers are emissions type with the A.I.R. pipes. Difference is on LT1/4 engines there is only one (much larger) pipe per side instead of the individual pipes in each primary for the L98 style. These also have an O2 bung in each collector and in each connector pipe. As far as fitment goes, I think all C4 headers will fit as far as bolting on so if you're going custom exhaust anyway, it really doesn't matter. The L98 headers slipped up into place on my '95 just as well as my LT1 specific ones did.

Last edited by Corvette Kid; Sep 8, 2004 at 08:20 PM.

Sep 8, 2004 | 09:09 PM

#10

Hippiehead025

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Melting Slicks

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From: walkersville md

coolness. so do i go with Hooker or TPIS? which is best? both r 1.75" and have AIR tubes. which fits best in compartment and which has the longer collector?