CLASS RACER FORUM - View Single Post - Approval of Super Stock Class Aftermarket Cylinder Heads

SpeierRacing · 04-16-2023, 11:16 AM

Let's pretend there are Edelbrock heads on the ground and everyone has them...

I spent lots of time with Edelbrock trying to get them to change a few things on the casting. There is ZERO reason that casting needs a 2.200 seat ring. It simply doesn't make a good head. Even with the 2.02 it leaves a .100 step at the seat/chamber transition! The throat is WAY too big. It's OK for a 2.02 valve, but marginal with a 1.94 and not even close for the 305 guys. The exhaust is decent but needs welded to be great, So at the end of the day the registers, the throats, the exhaust need welded up even before you start adding epoxy. Have $3000 in heads before you even look at port design.

Told Edelbrock all this.. They agreed to put a smaller OD seat ring in the next batch. THANKS! But it has to come out to fix the throats..

Now OEM.. I have a pallet of cracked heads here. Guys will simply not spend the money on OEM if aftermarket is legal. The last OEM I sent out to be brazed cost $1100 for the exhaust and then all the machine work to fix everything.

So this leads to the casting submitted.. $749 retail.. NO welding required. NO epoxy required. Makes a much nicer offering. That was the reasoning for choosing this casting. It's NOT an advantage to anyone. Guys are spending the money to get what's legal, ready to even use.

Like it or hate it, aftermarket heads are legal. Just trying for another option to maybe get more involved. Make a better offering. You do this when everything you tell a maker falls of deaf ears.

We weren't trying to reengineer the wheel here. We were just trying to legalize a casting that is cast with all the work being done to the Edelbrock. That's simply all..

04-16-2023, 11:16 AM	#10
SpeierRacing Junior Member Join Date: Oct 2011 Location: Hays, Kansas Posts: 75 Likes: 18 Liked 70 Times in 23 Posts	Re: Approval of Super Stock Class Aftermarket Cylinder Heads Let's pretend there are Edelbrock heads on the ground and everyone has them... I spent lots of time with Edelbrock trying to get them to change a few things on the casting. There is ZERO reason that casting needs a 2.200 seat ring. It simply doesn't make a good head. Even with the 2.02 it leaves a .100 step at the seat/chamber transition! The throat is WAY too big. It's OK for a 2.02 valve, but marginal with a 1.94 and not even close for the 305 guys. The exhaust is decent but needs welded to be great, So at the end of the day the registers, the throats, the exhaust need welded up even before you start adding epoxy. Have $3000 in heads before you even look at port design. Told Edelbrock all this.. They agreed to put a smaller OD seat ring in the next batch. THANKS! But it has to come out to fix the throats.. Now OEM.. I have a pallet of cracked heads here. Guys will simply not spend the money on OEM if aftermarket is legal. The last OEM I sent out to be brazed cost $1100 for the exhaust and then all the machine work to fix everything. So this leads to the casting submitted.. $749 retail.. NO welding required. NO epoxy required. Makes a much nicer offering. That was the reasoning for choosing this casting. It's NOT an advantage to anyone. Guys are spending the money to get what's legal, ready to even use. Like it or hate it, aftermarket heads are legal. Just trying for another option to maybe get more involved. Make a better offering. You do this when everything you tell a maker falls of deaf ears. We weren't trying to reengineer the wheel here. We were just trying to legalize a casting that is cast with all the work being done to the Edelbrock. That's simply all..