Heads to use...
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From: Doghouse ······································ Car: 1989 Formula 350 Vert Engine: 350 L98 Transmission: 700R4 Axle/Gears: B&W 3.27
Car: 87 Formula T-Top, 87 Formula HT
Engine: 5.1L TPI, 5.0L TPI
Transmission: 700R4, M5
Axle/Gears: Sag 3.73, B&W 3.45
Heads to use...
OK, I have thought about getting heads for my car. i have the SLP cam 51000 so I called SLP, & asked them which heads would be best match for my cam... they had no clue... I also asked them about my 1 3/4" SLP headers & which heads they recommend. the guy came back with a set of heads from a GTA, well I know there is no difference between any of the heads used on 350's from 87-92 on F-bodies.
I suggested the Vortech, & he thought it might not work... i think the guy was a little dense personally.
So, what I want to know is what (non-stock) heads have any of you used with your SLP headers?
John
------------------
G O D BLESS AMERICA
http://www.3rdgenformula.com
87 Formula 5.1 TPI Auto Modified (Yellow/Black)
87 Formula TPI (5 Speed) Yellow/Gray STOCK
14.8sec 1967 Buick Riviera
1990 Buick Riviera (driver)
83 Camaro
83 T/A
I suggested the Vortech, & he thought it might not work... i think the guy was a little dense personally.
So, what I want to know is what (non-stock) heads have any of you used with your SLP headers?
John
------------------
G O D BLESS AMERICA
http://www.3rdgenformula.com
87 Formula 5.1 TPI Auto Modified (Yellow/Black)
87 Formula TPI (5 Speed) Yellow/Gray STOCK
14.8sec 1967 Buick Riviera
1990 Buick Riviera (driver)
83 Camaro
83 T/A
Thread Starter
Moderator
Joined: Mar 2001
Posts: 14,293
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From: Doghouse ······································ Car: 1989 Formula 350 Vert Engine: 350 L98 Transmission: 700R4 Axle/Gears: B&W 3.27
Car: 87 Formula T-Top, 87 Formula HT
Engine: 5.1L TPI, 5.0L TPI
Transmission: 700R4, M5
Axle/Gears: Sag 3.73, B&W 3.45
ttt
Supreme Member
Joined: Jul 1999
Posts: 5,183
Likes: 42
From: Oakdale, Ca
Car: 89 IrocZ
Engine: L98-ish
Transmission: 700R4
He may think that the cam won't work with the Vortec heads, due to the lift...IIRC the Vortecs in stock form, only take about .450-.470in lift, otherwise they need the bosses cut down.
Thread Starter
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Joined: Mar 2001
Posts: 14,293
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From: Doghouse ······································ Car: 1989 Formula 350 Vert Engine: 350 L98 Transmission: 700R4 Axle/Gears: B&W 3.27
Car: 87 Formula T-Top, 87 Formula HT
Engine: 5.1L TPI, 5.0L TPI
Transmission: 700R4, M5
Axle/Gears: Sag 3.73, B&W 3.45
Thanks Mike...
I still am looking for anyone who is using aftermarket heads with SLP headers...
John
I still am looking for anyone who is using aftermarket heads with SLP headers...
John
Supreme Member
Joined: Feb 2000
Posts: 3,145
Likes: 1
From: Kemptville, Ontario, Canada
Car: 1992 Z28
Engine: 355
Transmission: 700R4
I have SLP 1 3/4 headers and Edelbrock Performer RPM heads with angle plugs. The exhaust ports and header ports match up perfectly but I have zero plug clearance. I believe the L98 angle plug and straight plug AFR's don't have any port alignment/plug clearance problems.
Thread Starter
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Joined: Mar 2001
Posts: 14,293
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From: Doghouse ······································ Car: 1989 Formula 350 Vert Engine: 350 L98 Transmission: 700R4 Axle/Gears: B&W 3.27
Car: 87 Formula T-Top, 87 Formula HT
Engine: 5.1L TPI, 5.0L TPI
Transmission: 700R4, M5
Axle/Gears: Sag 3.73, B&W 3.45
SLP states that Angle plugs will not work with their heads, but it is interesting to know that someone is actually using them with their headers...
What did you do? install the plugs & then put the headers on?
thanks...
John
What did you do? install the plugs & then put the headers on?
thanks...
John
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Joined: Feb 2000
Posts: 3,145
Likes: 1
From: Kemptville, Ontario, Canada
Car: 1992 Z28
Engine: 355
Transmission: 700R4
When I say I have zero plug clearance I mean I have zero plug clearance 
The plugs touch the headers. All I can say is.....SLP is right. Once I got my engine back together I had use the stock manifolds 
The manifolds barely fit. Since I have the engine out again, I'm going to try to make them fit by.......
1) Dimpling headers
2) Short plugs
3) Doubling up the gaskets
It was an oversight on my part. SLP mentions it in all their literature.
[This message has been edited by Acceld Z (edited December 13, 2001).]
[This message has been edited by Acceld Z (edited December 13, 2001).]
The plugs touch the headers. All I can say is.....SLP is right. Once I got my engine back together I had use the stock manifolds The manifolds barely fit. Since I have the engine out again, I'm going to try to make them fit by.......1) Dimpling headers
2) Short plugs
3) Doubling up the gaskets
It was an oversight on my part. SLP mentions it in all their literature.
[This message has been edited by Acceld Z (edited December 13, 2001).]
[This message has been edited by Acceld Z (edited December 13, 2001).]
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Thread Starter
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Joined: Mar 2001
Posts: 14,293
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From: Doghouse ······································ Car: 1989 Formula 350 Vert Engine: 350 L98 Transmission: 700R4 Axle/Gears: B&W 3.27
Car: 87 Formula T-Top, 87 Formula HT
Engine: 5.1L TPI, 5.0L TPI
Transmission: 700R4, M5
Axle/Gears: Sag 3.73, B&W 3.45
Gotcha... thanks for the clarification...
John
John
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