Other than the bolt holes, are the bases the same?Will the 86 runners work on the 88 base?Will the 86 dist.work on the 88 motor?thanks guys

 

As far as I know yes it should.

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TPI 305,
Gutted airboxes,
gutted MAF,
K&N filters,
Corvette Servo.
14.9@93mph

"Speed kills, wanna live forever, drive a Ford."

 

Just as a general question, what do you have to do to a pre-'87 mainfold to make it fir an '87-up head, and vice versa? I heard all you have to do is ream out the inner two bolt holes on either side, and it'll fit? what about newer intake on older heads?

 

I've done it with an Edelbrock Performer intake. I'm using 1988 centerbolt heads on a 1984 shortblock, with an old Edelbrock Performer intake. I had to make the center bolt holes oblong with a circular file, and a die grinder. I didn't have to fill in around the bolts with epoxy, either! I just torqued everything down and there are no leaks anywhere. So, yes, these things are interchangeable. Make sure if doing head swaps that you observe whether the head requires self-aligning rockers, or not. That's about the only sticky point I can think of.


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Daniel Burk
http://www.isthq.com/~dan/fcar.html
'84 Trans Am WS6/L69
KB SFC, Moser axles, Torsen Diff. PST suspension, Braided stainless brake lines, Koni struts, 11-inch rear disks,Spohn Adj. torque arm,
Ported 305 heads w/1.94"intake valves, Comp Cams XE262H, Griffen alum. radiator,
Turbine Technologies 2500 stall converter, underdrive pulleys, Crane Hi-6 & more.
1.05g skidpad verified.
New best E/T! 14.039 at 100.82 MPH in 41 degree air at Stanton, Michigan.