Weiand 142 for use on 87-95 centerbolt heads
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Weiand 142 for use on 87-95 centerbolt heads
Question : Is there a 50-state legal Weiand 142 made to fit the 87+ centerbolt heads ?
If not, does anyone have any suggestions on other kits that do ?
I'm currently runing the Edelbrock Performer Heads #60859, and am looking for something to work with these heads.
I've searched + read about a few people running this blower so I'm hoping it's possible with these heads, but would really like a definate answer before I go plunking down 2k for the kit. Thanks.
If not, does anyone have any suggestions on other kits that do ?
I'm currently runing the Edelbrock Performer Heads #60859, and am looking for something to work with these heads.
I've searched + read about a few people running this blower so I'm hoping it's possible with these heads, but would really like a definate answer before I go plunking down 2k for the kit. Thanks.
#2
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Re: Weiand 142 for use on 87-95 centerbolt heads
You've hit on the combo you can't do. All of the supercharger kits are for 86-down heads (not 87-up bolt pattern) or Vortecs. They have short nose, long nose and X-long nose (to clear the air pump belt on later V-belt cars or a factory serpentine accessory setup) but none of them work with 87-up bolt pattern (centerbolt) heads.
An 86-down kit It can be made to work with some modification to the center manifold bolts, of course, but there is no direct bolt-on for 87-up heads. Link to the various available 142 kits:
http://www.holley.com/types/Small%20...2%20Series.asp
An 86-down kit It can be made to work with some modification to the center manifold bolts, of course, but there is no direct bolt-on for 87-up heads. Link to the various available 142 kits:
http://www.holley.com/types/Small%20...2%20Series.asp
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Re: Weiand 142 for use on 87-95 centerbolt heads
Grinding the center 4 bolt holes is really a simple procedure and you can even get by with some large washers if you use a round allen head bolt as the flat sides of a std. hex bolt will get hung up on the angled surface. I've even seen some angled washers that take care of the mismatch. I've made some out of tubing as well.
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Re: Weiand 142 for use on 87-95 centerbolt heads
You've hit on the combo you can't do. All of the supercharger kits are for 86-down heads (not 87-up bolt pattern) or Vortecs. They have short nose, long nose and X-long nose (to clear the air pump belt on later V-belt cars or a factory serpentine accessory setup) but none of them work with 87-up bolt pattern (centerbolt) heads.
An 86-down kit It can be made to work with some modification to the center manifold bolts, of course, but there is no direct bolt-on for 87-up heads. Link to the various available 142 kits:
http://www.holley.com/types/Small%20...2%20Series.asp
An 86-down kit It can be made to work with some modification to the center manifold bolts, of course, but there is no direct bolt-on for 87-up heads. Link to the various available 142 kits:
http://www.holley.com/types/Small%20...2%20Series.asp
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Re: Weiand 142 for use on 87-95 centerbolt heads
Great info -- thx guys !
I was definately set on using the 142 if I could - and it sounds like it won't be much of a problem.
I was definately set on using the 142 if I could - and it sounds like it won't be much of a problem.
Last edited by adambros; 06-25-2007 at 10:11 AM.
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