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- - spark plugs small block chevy 400??? (https://67-72chevytrucks.com/vboard/showthread.php?t=297670)

dakman

06-30-2008 07:44 PM

spark plugs small block chevy 400???

anyone have some part numbers.. heat ranges, best plug etc.. etc..Can't find anything. It's a 70's engine with tapered seat. I know it's not the same as the 350's and the ones that came out were a ford but the ones at NAPA look way different (electrode way down inside the body) just figured someone on here must be running the 400 small block..

Thanks

El Jay

06-30-2008 07:48 PM

Re: spark plugs small block chevy 400???

My book says R44TX.
Hope that helps.

redhead69

06-30-2008 07:50 PM

Re: spark plugs small block chevy 400???

autolite platinum working good for me

AP26

dakman

06-30-2008 08:47 PM

Re: spark plugs small block chevy 400???

thanks, youy guys have stock heads?

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