Old 03-18-2020, 03:41 PM
backn65's Avatar
backn65 backn65 is offline
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Join Date: Jan 2002
Location: de pere, wi
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Default tri-power work with HEI and power brakes booster.

i am looking into switching from a quadrijet for a 65 tripower setup , my 65 lemans has a HEI and power brakes. i saw a post that stated you might be able to grind some material off the manifold and make it work. what about the HEI?
do not want to do if there are a lot of mods to be done.
i have an opportunity to purchase the tripower and am thinking it over.

Old 03-18-2020, 04:04 PM
b-man's Avatar
b-man b-man is offline
Join Date: Sep 2002
Location: Sunny So Cal
Posts: 14,830

You will be grinding on the carb body, carb base and the intake.


If it were my car I’d plan on switching to a smaller diameter distributor.

1964 Tempest Coupe LS3/4L70E/3.42
1964 Le Mans Convertible 421 HO/TH350/2.56
2002 WS6 Convertible LS1/4L60E/3.23
1956 VW Type II Panelvan 36hp 1200
1966 VW Type II Single Cab Pickup 57hp 1600
Old 03-18-2020, 04:06 PM
Dick Boneske's Avatar
Dick Boneske Dick Boneske is offline
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Location: Winneconne, Wisconsin
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Yes, there is a guy who sells HEI distributors with a smaller cap and body. There are many low-cost, low-effort options to the large HEI body.


'64 GTO Tripower Hardtop (Wife's Car)
'64 GTO Tripower Post Coupe (My Car)
'08 Grand Prix GXP LS4 V8 (Wife's Car)
'09 Pontiac G8 GT 6.0 V8
Old 03-19-2020, 01:10 AM
backn65's Avatar
backn65 backn65 is offline
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Location: de pere, wi
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thanks guys for the info.


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