New Summit vortec heads

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Jan 7, 2005 | 01:27 AM

ZRATED

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Member

Joined: Jul 2001

Posts: 190

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From: Elsa TX

Engine: 305

Transmission: 700R4

New Summit vortec heads

I was looking at the new summit book and came accros new vortec heads made by summit part# SUM-151124
I was wondering if they are worth the price because I am in the middle of a vortec head swap.

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Jan 7, 2005 | 06:35 AM

ironroad9c1

Junior Member

Joined: Jul 2004

Posts: 44

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From: norfolk/louisa va.

Car: 1990 caprice 9c1

Engine: lo5 350 tbi with 416 heads

Transmission: 700r4

not a bad price,need to call and find out if they have the dual intake pattern or if its conventional or reguler vortec.

Last edited by ironroad9c1; Jan 7, 2005 at 06:55 AM.

Jan 7, 2005 | 06:11 PM

SOLID LIFTER

Supreme Member

Joined: Apr 2002

Posts: 1,083

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From: HAUNTING THE CHAPEL

Car: '87 Mustang LX

Engine: 5.0

Transmission: T-5

www.competitionproducts.com sells pro-topline "vortec style" heads with screw-in studs, and springs good to .510" lift for $499.
You may want to check them out too.

Last edited by SOLID LIFTER; Jan 7, 2005 at 06:15 PM.

Jan 8, 2005 | 02:47 PM

Avenger007

Member

Joined: Sep 2004

Posts: 267

Likes: 0

From: Georgia

Car: 88 Firebird

Engine: 350 LO5 TBI

Transmission: 700R4 Vette Servo/Shift

this is an interesting set of prices for vortecs.

Can anyone get some flow ratings or something comparing these heads. These are CHEAP and looking quite attractive as a very near-future buy for my buildup. What is everyones opinions on these and vs. the summit ones.

World S/R Head
76cc Chamber
1.940, 1.500
165cc intake runners
Price: $419.95 ($569.99 assembled)

World S/R Head
67cc Chamber
1.940, 1.500
165cc intake runners.
Price: $419.95 ($569.99 assembled)

Dart Iron Eagle S/S
165cc intake runner
72cc Chamber
1.940, 1.500
Price: $424.95 ($549.95 assembled)

Pro Topline Vortec Assembled Heads
64cc Chambers
170cc intake runners
Price: $499.95

76cc World Torquer II Heads
171cc intake runners
76cc Chambers
2.020, 1.600
Price: $469.95 ($659.95 assembled)

67cc World Torquer II Heads
171cc intake runners
67cc chambers
2.020, 1.600
Price: $469.95

Jan 8, 2005 | 11:50 PM

Ray87Z

Supreme Member

Joined: Jul 1999

Posts: 1,366

Likes: 0

From: Atlanta, GA, US of A

Car: 94 Z28

Engine: LT1 w/ headers, catback, CAI, tune

Transmission: 4L60E

Axle/Gears: 3.23s

The following link has flow numbers for most of those heads, the stock GM vortecs dust them all with ease, I'm assuming the Pro-Toplines would do the same. Would be interesting to see some independent numbers for the Summit and Pro Topline Vortecs though (not on the list I don't believe)

Scroll down to the bottom for the links to the seperate sections. http://www.carcraft.com/techarticles/41598/index.html

Last edited by Ray87Z; Jan 8, 2005 at 11:54 PM.

Jun 13, 2006 | 12:00 PM

pyro719juggalo

Junior Member

Joined: Mar 2006

Posts: 98

Likes: 0

From: colorado springs

Car: 1989 RS

Engine: 305

Transmission: t5

Axle/Gears: 373 locker

Anyone ever find out if these summit vortecs flow good?

Jun 13, 2006 | 12:52 PM

shaggy56

Supreme Member

Joined: Apr 2002

Posts: 1,119

Likes: 1

From: Armpit state

Car: 71 Nova

Engine: Superramed 383, Topline heads

Transmission: 700r4

Axle/Gears: 8.2 posi 3.08

If these heads are actually the same as Toplines I can say I know someone running them and they seem to flow slightly better. I know of two people runing the stocks and the Toplines and the Topline car traps slightly faster so I would say they flow a bit better.

New Summit vortec heads

New Summit vortec heads

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