Replacement heads on Stocker

[Terry Cain]

Does anyone think that shortly/soon NHRA will open up and allow after market heads in stock. Some of these heads are getting very hard to find and also very expensive.

[Nmbr1GMfan]

Originally Posted by Terry Cain

Does anyone think that shortly/soon NHRA will open up and allow after market heads in stock. Some of these heads are getting very hard to find and also very expensive.

I thought they already had aftermarket castings legal for most combos???

[Stephen & Horace Johnson]

Originally Posted by Terry Cain

Does anyone think that shortly/soon NHRA will open up and allow after market heads in stock. Some of these heads are getting very hard to find and also very expensive.

hmmmm they are already legal....

[Terry Cain]

Originally Posted by Stephen & Horace Johnson

hmmmm they are already legal....

Not my combo or several others. 68-69 427/390-400 hp oval port motor. Spec's show an Edelbrock head for SS but NOT stock.

[Nmbr1GMfan]

Originally Posted by Terry Cain

Not my combo or several others. 68-69 427/390-400 hp oval port motor. Spec's show an Edelbrock head for SS but NOT stock.

I don't know protocol but I'm sure reaching out to NHRA about your concerns may be a good start.

[Terry Cain]

Originally Posted by Nmbr1GMfan

I don't know protocol but I'm sure reaching out to NHRA about your concerns may be a good start.

That's what you and I are doing. lol

[Terry Cain]

Originally Posted by Stephen & Horace Johnson

hmmmm they are already legal....

Can you show me an example besides the 396/375 combo?

[SDT1DYI]

I believe they are listed in the Stock Car Classification Guide under your Car/Motor combo. Best to check with your Divisional tech director before spending $$$ confirm HP penalties.

STK. 6380.

[Terry Cain]

Originally Posted by SDT1DYI

I believe they are listed in the Stock Car Classification Guide under your Car/Motor combo. Best to check with your Divisional tech director before spending $$$ confirm HP penalties.

STK. 6380.

They are listed on some combo (not mine) BUT, if you start looking at spec's of replacement vs oem head, most replacements have a larger volume which might not be legal (unless there's a rule I don't know about).

[Stephen & Horace Johnson]

Originally Posted by Terry Cain

Can you show me an example besides the 396/375 combo?

if its legal in the guide then well ... You know