Valves for a Mastodon Aluminium Fuel Heads

Hi,
I have a friend with a Donovan 487 ci engine using mastodon heads , plans on racing it in nostalgia nitro Funny car Class.

He interested in anyone with some advice on where to purchase some new valves for the heads.

He needs the following

Exhaust- 1.900 head diameter, with 5.340 overall length, and 0.300 tip length

Intake - 2.200 head diameter, with 5.340 overall length, and 0.300 tip length

Need to have harden tips.

Any advice as to the best place to purchase or a manufacturer to get them made.

 

Victory valve is where i would check, i am sure they would make what ever you need or point you in the right direction.

 

i have a question, do these heads use standerd style rocker assy.?
If they do, i have suggestion for you when you find someone to make the valves.
Gene Terenzio Sr.