distributor cap
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Junior Member
Joined: Oct 2009
Posts: 56
Likes: 0
From: Nor Cal
Car: 87 Trans Am
Engine: 305 TPI
Transmission: T5
Axle/Gears: 3.23 posi
distributor cap
I just bought 8mm Heli-Core MSD spark plug wires, and i relized I had 7.5mm on my car right now. the 8mm wires dont want to snap on to the top of the distributor cap. do i have to buy a new distrbutor cap to make them fit and if so should i upgrade to a MSD cap for a little more?
Senior Member
Joined: Dec 2009
Posts: 850
Likes: 8
From: Chilliwack BC
Car: White 1987 IROC-Z
Engine: 305 TPI LB9, 215 HP
Transmission: Borg-Warner T5 NWC
Axle/Gears: Borg-Warner 7.75 with 3.27 ratio
Re: distributor cap
I just bought 8mm Heli-Core MSD spark plug wires, and i relized I had 7.5mm on my car right now. the 8mm wires dont want to snap on to the top of the distributor cap. do i have to buy a new distrbutor cap to make them fit and if so should i upgrade to a MSD cap for a little more?
I had no problem with 8mm wires on my 1987 305 TPI IROC with remote coil!! You should have the same.............as long as you've got a stock 87 Trans AM????
Got a picture???
Senior Member
Joined: Feb 2010
Posts: 1,125
Likes: 1
From: San Diego, California
Car: Trailblazer EXT 4.2 (Firebird Form)
Engine: 5.1 4bbl
Transmission: 700R4 Mega Raptor Level 4
Axle/Gears: 2.73
Re: distributor cap
I'm running 8.65 Moroso Racing wires and have no issues.... 
Senior Member
Joined: Dec 2009
Posts: 850
Likes: 8
From: Chilliwack BC
Car: White 1987 IROC-Z
Engine: 305 TPI LB9, 215 HP
Transmission: Borg-Warner T5 NWC
Axle/Gears: Borg-Warner 7.75 with 3.27 ratio
Re: distributor cap
Hello wabbitslayer!!
Try pushing down harder, sometimes the boots are a little bit long???
Try pushing down harder, sometimes the boots are a little bit long???
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