Got To Love the New COPO 427/450 Engine Specs!

SSDiv6 · 06-05-2014, 02:02 PM

It seems they are ready to battle the new Ford 429 engine!

Compression: 14.9
Lift: 0.676"
Throttle Bore: 4 @ 2.250” 4B-4500 (Dominator size)
Valves: 2280(I)/1620(E)
Dual Coil Springs
Heads: 12 Degree LSX/LS7
https://sdparts.com/details/gm-perfo...parts/19201806

GUMP · 06-05-2014, 02:09 PM

The head is the LSX DR not the LSX LS7.

SSDiv6 · 06-05-2014, 02:36 PM

Quote:

Originally Posted by GUMP

The head is the LSX DR not the LSX LS7.

Then it should even make more power.
The DR version is an 11 degree head and it can flow close to 430 CFM.

http://www.competitionplus.com/drag-...all-bore-heads

kdanner · 06-06-2014, 12:13 AM

Didn't that engine get canned a while back? Don't think that many cubic inches fits FS/B anyway, unless they changed the rules yet again.

Rat Raceway · 06-06-2014, 10:33 AM

COPO's now have two 427 motors.

One is a factory Shootout engine (above Specs) and the other is offered with the cars. I believe it's like the Challenger Track pack 426 motor not something you can buy with the car.

kdanner · 06-06-2014, 05:02 PM

Ah I saw the 450 and immediately thought of the 450 inch one from before.

Rick Leininger Jr. · 06-06-2014, 07:42 PM

Unless I missed it, I don't see the LSX-DR head port volumes listed.

06-05-2014, 02:02 PM	#1
SSDiv6 VIP Member Join Date: Feb 2003 Location: Glendale, Arizona Posts: 3,045 Likes: 712 Liked 1,604 Times in 583 Posts	Got To Love the New COPO 427/450 Engine Specs! It seems they are ready to battle the new Ford 429 engine! Compression: 14.9 Lift: 0.676" Throttle Bore: 4 @ 2.250” 4B-4500 (Dominator size) Valves: 2280(I)/1620(E) Dual Coil Springs Heads: 12 Degree LSX/LS7 https://sdparts.com/details/gm-perfo...parts/19201806

06-05-2014, 02:09 PM	#2
GUMP VIP Member Join Date: May 2002 Location: Shelby, NC Posts: 1,826 Likes: 2,176 Liked 2,358 Times in 557 Posts	Re: Got To Love the New COPO 427/450 Engine Specs! The head is the LSX DR not the LSX LS7.

06-06-2014, 12:13 AM	#4
kdanner Member Join Date: Nov 2003 Location: Austin, TX Posts: 221 Likes: 50 Liked 38 Times in 17 Posts	Re: Got To Love the New COPO 427/450 Engine Specs! Didn't that engine get canned a while back? Don't think that many cubic inches fits FS/B anyway, unless they changed the rules yet again. __________________ K Danner STK 468

06-06-2014, 10:33 AM	#5
Rat Raceway Member Join Date: Nov 2012 Location: Denver Co Posts: 408 Likes: 282 Liked 35 Times in 17 Posts	Re: Got To Love the New COPO 427/450 Engine Specs! COPO's now have two 427 motors. One is a factory Shootout engine (above Specs) and the other is offered with the cars. I believe it's like the Challenger Track pack 426 motor not something you can buy with the car. __________________ Ross Gregory 5133 Stock,Super Stock 53 Top Dragster

06-06-2014, 05:02 PM	#6
kdanner Member Join Date: Nov 2003 Location: Austin, TX Posts: 221 Likes: 50 Liked 38 Times in 17 Posts	Re: Got To Love the New COPO 427/450 Engine Specs! Ah I saw the 450 and immediately thought of the 450 inch one from before. __________________ K Danner STK 468

06-06-2014, 07:42 PM	#7
Rick Leininger Jr. Member Join Date: Jun 2007 Posts: 162 Likes: 0 Liked 0 Times in 0 Posts	Re: Got To Love the New COPO 427/450 Engine Specs! Unless I missed it, I don't see the LSX-DR head port volumes listed.