Coyote blueprint specs changed

[MPR]

There's plenty of dirt! Keep asking, it will be interesting to see if you get any response from anyone. I think this should interest every Stock/Super Stock racer but it has quietly slipped thru the cracks.

[Ralph A Powell]

A superseded replacement?

Originally Posted by MPR

There's plenty of dirt! Keep asking, it will be interesting to see if you get any response from anyone. I think this should interest every Stock/Super Stock racer but it has quietly slipped thru the cracks.

[Whalen3186]

It seems like this combination has drawn some attention since it went -1.20 and got instant hp at a D1 race last month. Maybe Mr. Carson or his spokesperson, JDM, can shed some light on the topic?

[Mike Fuller]

It just got another 5 HP today

[kdanner]

I can only guess, but my best guess when I initially read this was that someone had entered as a 2014 but actually used heads with at least one of the differences in the 13 head which are:

1. CNC ports/chamber
2. Larger exhaust valve


Am I getting warm?

[MPR]

I can tell you you're warming up but it's much deeper than that! If NHRA racers had any idea they would all have a fit. Issues like this should never be ignored no matter what brand you race. These oversights erode the foundation class racing is built on! Keep digging and maybe someone will give you a reasonable explanation but I doubt you'll get one from the tech dept.

[jamie2370]

Its called running heads that didn't come on a certain combo from the factory. Bigger valves, cnc chambers and runners, having pistons custom made to not hit the head... because it didn't come on a 5.0 coyote motor. But somehow it got approved by higher ups. Then gets the combo hit with a 1.20 under with what should be an illegal engine combo. That's all I'm gonna say about it but believe me, there is a lot more to this certain story.

[SSDiv6]

Originally Posted by kdanner

I can only guess, but my best guess when I initially read this was that someone had entered as a 2014 but actually used heads with at least one of the differences in the 13 head which are:

1. CNC ports/chamber
2. Larger exhaust valve


Am I getting warm?

I believe the new approved cylinder heads are the 5.2 Coyote, GT350 cylinder heads. They are CNC ported and also have a larger valve.
They also have larger port runners.

[Jeff Stout]

The earlier heads are hard to find just like the SBC so these are the superceded heads. Nothing to look at here.

[james schaechter]

Originally Posted by Whalen3186

It seems like this combination has drawn some attention since it went -1.20 and got instant hp at a D1 race last month. Maybe Mr. Carson or his spokesperson, JDM, can shed some light on the topic?

He was never for a lack of posts before. I am sure he will weigh in.....well maybe.