04-15-2002, 12:25 PM | #1 |
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Join Date: Feb 2002
Location: Vacaville, CA
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Vortech Heads
I was thinking about using them and I have a few questions. Are vortech Heads something you can get from the junkyard? If so what cars/trucks would they be on? I know the intake manifold is different, but will the same lifters, exhaust manifolds, etc work? and last, if I could get a set of used ones, would it be a bad idea to put them on my old 350 without rebuilding it?
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70 C/10 Light Red 350/TH350, HEI, Duals w/40 series Flows, 91 seat, LED taillights 99 Pontiac S/C GTP, SLP Ram Air hood, GMPP Konis & springs 95 Neon ACR, MP PCM, AFX UDP, 3.0 CAI |
04-15-2002, 01:12 PM | #2 |
Strongman Garage
Join Date: Apr 2000
Location: Salinas, CA
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they come on 96-98 trucks with 350s.. so finding them in the junkyard might be a little hard
------------------ My Truck pictures www.xframeimpala.com 68 4x4 short fleetside 327 CH465 edelbrock intake and carb MSD distributor its the "SHAGROLET" 56 big window short stepside 235 dual 1 brls 64ImpalaSS 327 70 C10 LWB fleetside custom/10 350/TH350 IM me on aol SN= SHAGROLET
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Kalle 68 GMC Suburban 1500 4x4 SOLD 69 Pontiac Lemans 99 Silverado 4.8 5 speed ECSB [ Facebook Instagram Subscribe on YOUTUBE |
04-15-2002, 02:53 PM | #3 |
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Join Date: Mar 2002
Location: Efland, NC
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They are pretty inexpensive from any gm performance parts dealer. Plus you don't have to worry about worn valve guides or getting a valve job, or anything else associated with buying used heads.
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1971 Cheyenne Super Soon to be converted to '68 front clip. Efland, NC |
04-15-2002, 03:08 PM | #4 |
Account Suspended
Join Date: Jan 2000
Location: Woodstock, IL
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They are somewhere around $450 NEW from the dealer!! Cheap go fast goodies!! That's the name of the game!!
------------------ http://hometown.aol.com/racedvl/racedvl69index.html Woodstock,IL.northwest of Chicago It's not what you buy, it's what you build!! I did not climb to the top of the food chain, to become a vegetarian. For some pics of my truck. |
04-15-2002, 03:27 PM | #5 |
Whisky Bent & Hell Bound
Join Date: Apr 2001
Location: Chula Vista, CA
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You will also need some self aligning rocker arms to go allong with that setup
------------------ 68 custom stepside PS,PB 350 with Vortec Heads,Carter 650, Edelbrock Performer,HEI, Crane Enegizer 266, Headmen headers 40 series Flowmasters, B&M hole shot 2,000 rmp stall, TCI TH350 Streetfighter, 4.10 gears Virginia Beach, VA by way of Houston, TX
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68 custom stepside PS,PB 350 with Vortec Heads,Carter 650, Edelbrock Performer,HEI, Crane Enegizer 266, Headmen headers 40 series Flowmasters, B&M hole shot 2,000 rmp stall, TCI TH350 Streetfighter, 4.10 gears 2003 Harley Davidson 883C San Diego, CA by way of Houston, TX |
04-15-2002, 04:21 PM | #6 |
its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
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Your manifold/haders will bolt right on. You'll need new center bolt valve covers, new style intake gaskets, and the aformentioned intake manifold. The self aligning rockers can be omited for some hardened pushrods and guide plates.
Your cam selection is limited onless you are willing to replace the springs, I think it was .420 lifft, that or .480...I can not remember at the moment. Call a cam company, they will set you up with exactly what you need. I wouldn't even bother with junk yards on this...and I'm a cheap b@stard. As for new heads on an old engine, it all depends on how old you are talking about, and how hard you'll be pushing it. If you have 100K on the clock, I wouldn't even think of it. (not again anyways) However, if you have 50,000 or so, I think i would yank it, inspect real close, and take it from there. ------------------ '69 G.M.C. 350/350. Trying to clean up the left over damage from the Dope-Smokin-Old-Man I've been dubbed the Longhorn Freak/Fanatic/Expert, I just hope I can live up to it. FINALLY got the HORNIAC...a '70 one ton Longhorn with a Pontiac 350/350 and lots of 'personality'. Check out The Longhorn Webite. If you need a pic posted, E-mail me at longhornmail@yahoo.com Andy, in Columbus Ohio |
04-15-2002, 07:02 PM | #7 |
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Join Date: Jan 2001
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I've got Vortechs on my 350. Stock they can handle up to .470" lift, I had my valve guides cut down .100" anticipating a bigger cam than I actually ended up with. This would have allowed for .570". (Not that I actually considered that much lobe......) The cam I ended up with was CompCams Extreme Energy 262H. .460" intake, .469 Exhaust.
Duration at .050" is 218/224. with this cam, Edelbrock Performer manifold, ceramacoat headers, HEI ignition, and 750 cfm Edelbrock, I dynoed at 380 horsepower at 4800 rpm, and 445 ft/lbs torque at 3800 rpm. Torque stays over 400 ft/lbs from 2800 to 5500 rpm. Great street motor, used lower RPM range manifold because of my 3.07 rearend gears. This engine idles fine at 600 rpm, and I run it on 89 octane fuel. Hope this helps. ------------------ 1969 SWB Stepside. 350 w/Vortec heads, 380 H.P., 450 ft/lb dyno proven.
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1969 SWB Stepside. 350 w/Vortec heads, 380 H.P., 450 ft/lb dyno proven. |
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