What is the distance between exhaust ports and spark plug hole??
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Member
Joined: Sep 2004
Posts: 192
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From: Albuquerque / Las Cruces, New Mexico
Car: 91 camaro z28
Engine: 6.3L, heads, headers, cam,.....
Transmission: 700-R4 w/shift kit and 3-4 WOT kit
Axle/Gears: 4.11
What is the distance between exhaust ports and spark plug hole??
On stock heads for the L98 what is the distance from the center of the exhaust port between the bolts for the headers and the hole for the spark plug? I wrote SLP and asked them if I would have any clearance issues with there headers with my heads. They told me, ”If they did not move the sparkplug hole for combustion effiency they should fit if they did move it they will not fit”. Well if any of you guys know this distance please let me know. Thanks for your help.
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Joined: Jul 2003
Posts: 4,803
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From: Grand Rapids, MI
Car: Z28
Engine: Sb2.2 406
Transmission: Jerico 4 speed
Axle/Gears: Ford 9" 3.60
Why not make things a lot easier and just ask if anyone here runs SLP headers (whatever diameter) with the L98 heads?
Thread Starter
Member
Joined: Sep 2004
Posts: 192
Likes: 0
From: Albuquerque / Las Cruces, New Mexico
Car: 91 camaro z28
Engine: 6.3L, heads, headers, cam,.....
Transmission: 700-R4 w/shift kit and 3-4 WOT kit
Axle/Gears: 4.11
Thats a good question, didnt even think of that!! 
Edit: Actually I’m not worried if the SLP headers will fit on the L98 heads I just want to know what the distance is between the spark plug hole and the exhaust port is different from my heads.

Edit: Actually I’m not worried if the SLP headers will fit on the L98 heads I just want to know what the distance is between the spark plug hole and the exhaust port is different from my heads.
Last edited by spedrace35; Dec 3, 2005 at 06:13 PM.
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