440 aftermarket block and heads

[moparsforlife]

I have a Mopar Performance crate engine 2468330M with stage 5 cast iron heads.I have been using spark plugs that are made for a factory 440 with a short reach.I have a big problem with the plugs fouling.I'm thinking the plugs don't have a long enough reach with the stage 5 cast iron heads and was thinking on trying a longer reach MP spark plug but am afraid of them hitting the piston top and damaging it,Any ideas?

 

[moparsforlife]

I have a Mopar Performance crate engine 2468330M with stage 5 cast iron heads.I have been using spark plugs that are made for a factory 440 with a short reach.I have a big problem with the plugs fouling.I'm thinking the plugs don't have a long enough reach with the stage 5 cast iron heads and was thinking on trying a longer reach MP spark plug but am afraid of them hitting the piston top and damaging it,Any ideas?

I tried the Hemi-small block plugs that have the 3 quarter inch reach.Problem solved.

 

[moper]

I was going to say I think the V heads need the small block style plug...

 

[moparsforlife]

I think that was the problem all along.Thanks.