Best Mopar engine for SSGT?

Stewart Way · 05-23-2007, 07:12 PM

Just wondering what Mopar engine people think would make the best GT engine and why. Have been bench racing at the shop during lunch and discussed 340 360 383 and have different opinions. Lets here some more opinions. I like the 67 383 if NHRA would give it a HP break from the 68-69 since it has smaller E valves and AFB vs AVS Any thoughts?
Thanks

Sean Ward · 05-23-2007, 08:37 PM

i, m buildinding a 400 to go in a 72 scamp for gt/ea[:-cheers-:]

sean ward
stk# 2882

Bruce Fulper · 05-24-2007, 02:06 AM

What's the best head that ever came on a 383? That little stroke ought to be a killer deal with the right head.

"The future isn't what it used to be."

bsa633 · 05-24-2007, 05:06 AM

with heads from Eric at CFO flow will never be a problem on a 383...

Jared Jordan · 05-24-2007, 12:20 PM

I think the 906 casting was the best head for the 383, though I'm no expert. It's possible to get 300+ CFM out of one of those heads. 203 cc intake port and a 2.08 valve. I know of a 383 that made 620+ hp on the pump with more left in it.

Jared Jordan
7551 SS/BA

Greg Gay · 05-24-2007, 03:21 PM

I think the 71 high compression 340 has a lot of potential on paper, but it may be hard on parts due to the high rpm it will require.

Mr wilson · 05-24-2007, 10:40 PM

The 915 casting number has a closed chamber and flows as well as906's

Paul Precht · 05-25-2007, 09:40 AM

The stage v head is best but not legal on a 67 383. The 915 is legal only on the 62 343/383. The small valve 915 may be and would be best. The 70 383 with the small Holley would seem the best combo. The 67 came with a small AFB and 516 heads or a similar casting which is the worst head ever made for these motors, Paul.

RJ · 05-25-2007, 12:50 PM

Quote:

I think the 71 high compression 340 has a lot of potential on paper, but it may be hard on parts due to the high rpm it will require.

Why would it need to twist any higher than a typical SS 340?

IHRA #9730 D/PS

Stewart Way · 05-25-2007, 07:17 PM

Paul
NHRA blueprint specs list the 915 as OK for the 67 383. But with the 67 and 68 both at 300 hp for SS the AVS might be better (bigger) than the AFB.
Still think the B is a better choice than the LA based on HP ratings VS size.

05-23-2007, 07:12 PM	#1
Stewart Way Member Join Date: Aug 2003 Location: Atlanta Posts: 476 Likes: 20 Liked 70 Times in 22 Posts	Best Mopar engine for SSGT? Just wondering what Mopar engine people think would make the best GT engine and why. Have been bench racing at the shop during lunch and discussed 340 360 383 and have different opinions. Lets here some more opinions. I like the 67 383 if NHRA would give it a HP break from the 68-69 since it has smaller E valves and AFB vs AVS Any thoughts? Thanks __________________ Stewart Way 2424 SS

05-23-2007, 08:37 PM	#2
Sean Ward Member Join Date: Apr 2006 Location: Grand Island FL. Posts: 389 Likes: 0 Liked 0 Times in 0 Posts	i, m buildinding a 400 to go in a 72 scamp for gt/ea[:-cheers-:] sean ward stk# 2882 __________________ Sean Ward NHRA s/ss/comp#2882 SW4 MOTORSPORTS

05-24-2007, 12:20 PM	#5
Jared Jordan Senior Member Join Date: Jun 2004 Location: Modesto, CA Posts: 612 Likes: 199 Liked 534 Times in 118 Posts	I think the 906 casting was the best head for the 383, though I'm no expert. It's possible to get 300+ CFM out of one of those heads. 203 cc intake port and a 2.08 valve. I know of a 383 that made 620+ hp on the pump with more left in it. Jared Jordan 7551 SS/BA __________________ Jared Jordan 9 B/SA 2024 Jeg's D7 All Star - Stock

05-25-2007, 07:17 PM	#10
Stewart Way Member Join Date: Aug 2003 Location: Atlanta Posts: 476 Likes: 20 Liked 70 Times in 22 Posts	Paul NHRA blueprint specs list the 915 as OK for the 67 383. But with the 67 and 68 both at 300 hp for SS the AVS might be better (bigger) than the AFB. Still think the B is a better choice than the LA based on HP ratings VS size. __________________ Stewart Way 2424 SS

05-24-2007, 02:06 AM	#3
Bruce Fulper Senior Member Join Date: Aug 2004 Location: So. Cal. Posts: 651 Likes: 4 Liked 54 Times in 33 Posts	What's the best head that ever came on a 383? That little stroke ought to be a killer deal with the right head. "The future isn't what it used to be."

05-24-2007, 05:06 AM	#4
bsa633 Banned Join Date: Mar 2002 Posts: 310 Likes: 0 Liked 0 Times in 0 Posts	with heads from Eric at CFO flow will never be a problem on a 383...

05-24-2007, 03:21 PM	#6
Greg Gay Member Join Date: Aug 2003 Location: Vermont Posts: 385 Likes: 21 Liked 283 Times in 70 Posts	I think the 71 high compression 340 has a lot of potential on paper, but it may be hard on parts due to the high rpm it will require.

05-24-2007, 10:40 PM	#7
Mr wilson Junior Member Join Date: May 2007 Posts: 9 Likes: 0 Liked 0 Times in 0 Posts	The 915 casting number has a closed chamber and flows as well as906's

05-25-2007, 09:40 AM	#8
Paul Precht Senior Member Join Date: Dec 2001 Location: Elysburg, Pa Posts: 731 Likes: 357 Liked 320 Times in 119 Posts	The stage v head is best but not legal on a 67 383. The 915 is legal only on the 62 343/383. The small valve 915 may be and would be best. The 70 383 with the small Holley would seem the best combo. The 67 came with a small AFB and 516 heads or a similar casting which is the worst head ever made for these motors, Paul.