Old 05-14-2020, 11:48 AM
stu72's Avatar
stu72 stu72 is offline
Senior Chief
Join Date: Feb 2007
Location: Dayton, Ohio
Posts: 465
Default HEI clearance

Maybe making a change of distributor. How many have made the change to a HEI and not have to beat the firewall back?

Old 05-14-2020, 12:40 PM
John Milner's Avatar
John Milner John Milner is offline
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Join Date: Nov 2004
Location: Oklahoma
Posts: 828

It’s close but I didn’t have to clearance the firewall any.

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Old 05-23-2020, 06:56 PM
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importsmasher importsmasher is offline
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Join Date: Sep 2006
Location: Northern Utah
Posts: 1,145

On my old 73 Ventura I had to clearance the firewall. Same engine/transmission transplanted into my 74 GTO, didn't require clearancing.

Scott Baggiore

66 GTO convertible 389/4 speed (parents bought new)
73 Firebird Formula 400/4 speed
74 GTO 455/4 speed

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