Pro Flo XT Intake with DIY adaptor for TPI Throttle body
#1
Pro
Thread Starter
Pro Flo XT Intake with DIY adaptor for TPI Throttle body
Here is another way to install the Pro Flo XT on a 350 C4 Vette. I made an adaptor so I could use my TPI TB and cables. I also reused my Holley SP fuel rails and regulator. You need a small HEI distributor and remote coil. I used a TPIS Mini ram water neck. With this setup, hood clearance is no problem, about a ½ inch at the TB. (See the photo with the yellow clay on top of the TB). I made the adapter with a 2in hole saw and a drill press. I cut off the upper tab for the LS TB with a circular saw and a plywood jig bolted to the manifold to cut straight. I drilled and tapped the side of the intake to mount a Holley throttle cable bracket to the driver’s side of the intake. I made a plastic wedge to get it to line up with the TB. I haven’t had it dynoed but my SOTPs meter feels good.
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cardo0 (11-27-2019)
#6
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St. Jude Donor '05
Curious also. Looks like an improved LT1 type intake.
#8
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Oh that's sexy! Can't wait to hear the results. I have been thinking more about utilizing a traditional small block versus going LS when I get around to getting my car. I always loved the look of the tpi motors.
#9
Advanced
Excellent!
Very nice work! The more I look into the costs/time associated with swapping a LS and hooking it to my ZF, the more I want to go with a Pro Flo in the future and call it a day.
#10
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#12
Melting Slicks
I had to buy a piece of 10mm thick plate to make the TB adaptor, and made a themostat housing blank plate with the leftover, then had to go to a friends workshop to find a scrap piece to make the throttle bracket plate, I was cleaning out the back of the garage last week and found a 4 metre long (13 feet) by 10mm thick piece of alloy amongst the scrap steel !
#14
Instructor
#17
I know this is a very old thread but I am hoping Dave_85 will see this.
I want to do this exact same modification but want to know how he went about centering the adapter plate on the Pro Flo XT manifold so when he drilled/ground out for the dual throttle blades so it was centered.
I want to do this exact same modification but want to know how he went about centering the adapter plate on the Pro Flo XT manifold so when he drilled/ground out for the dual throttle blades so it was centered.
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AZSP33D (06-15-2021)