Author Topic: spark plug thread size  (Read 1326 times)

Offline chevn-up

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spark plug thread size
« on: March 04, 2018, 11:30:32 AM »
Hey, hey. Need to verify if the plugs in my 305 are 14mm.? Thanx

Online Rapid Roy

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Re: spark plug thread size
« Reply #1 on: March 04, 2018, 11:38:37 AM »
1974 Cheyenne 10 LWB STOCK 350 W HEI /TH350/AC/4 BBL Quadrajet
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Offline bd

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Re: spark plug thread size
« Reply #2 on: March 04, 2018, 01:34:18 PM »
M14 x 1.25
Rich
It's difficult to know just how much you don't know until you know it.
In other words... if people learn by making mistakes, by now I should know just about everything!!!
87 R10 Silverado Fleetside 355 MPFI 700R4 3.42 Locker (aka Rusty, aka Mater)