World products BBC iron heads ?

[sweetk30]

Friend has a built 454 with world products heads and raised exhaust port location . Side note : dont ever do them if you can fitment problems galore !

Anyway he needs plugs but there is hardly any options he is coming up with . The engine was built 20+ years ago and these were the autolite plugs in it .

Is there any better options these days in tiny plug and hex for the socket drive . ?

 

[Wes Harden]

are they 9/16ths plugs ?
some high performance VW plugs are 9/16ths hex

 

[Wes Harden]

nope 5/8ths hexs 14 mm plugs, I don't know why that would be hard to find, 40ts in a delco should be the same

 

[sweetk30]

There 5/8" hex and stubby porcelain. .

 

[Wes Harden]

O'Reilly said I could have them by 27th of October, if I ordered today
Autolite 132

 

[Bent77]

Grind the socket

 

[sweetk30]

Not socket problem .

Just looking to see who is running what on these heads with good results .

 

[Wes Harden]

ahh my bad I miss read or skipped "other options"

 

[Bent77]

Looks identical to a 20 series Autolite. Maybe look at those. I never had issues with Autolite plugs

 

[SpeedlabDan]

What about the accel short plugs? It looks very similar to the Accel 416S plugs I'm running. Not sure the thread size off hand but they are 5/8 hex and stubby

 

[streetrodchev]

I’ve used Autolite racing AR134 plugs in my bbc with 2 1/8” headers. They needed to be short for clearance.

 

[76zimmer]

Are these part numbers a match?