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04-02-2014, 07:03 PM
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#1 |
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Registered User
Join Date: Jun 2011
Location: Calgary, AB, Canada
Posts: 146
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Need new heads (350) best upgrade for "stock" app?
I need to buy a new set of heads as my old ones are, well, terrible. Any input on which ones I should look at? The engine is all stock with a semi fresh rebuild. The engine is in a 1980 Blazer bush pig.
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-Justin. The past cannot be edited, or erased. Only accepted. Loud, proud and country by the grace of god! Bradley Anderson 1997-2011 |
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04-02-2014, 07:10 PM
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#2 |
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Registered User
Join Date: Mar 2014
Location: OKC
Posts: 31
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Re: Need new heads (350) best upgrade for "stock" app?
Vortec heads are a good flowing head but you may need to get a vortec manifold.
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=1987 Chevrolet R10 Shortwide SBC= |
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04-02-2014, 07:11 PM
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#3 |
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Registered User
Join Date: Mar 2014
Location: Clearfield Utah
Posts: 638
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Re: Need new heads (350) best upgrade for "stock" app?
I'm searching junk yards for a set of Vortec heads. Found one set the other day (Just didn't have the money at the time) $44.00 + $10.00 core each. these had the "Saw tooth" 12558062 casting. Most people will agree these are the best flowing stock heads Chevy ever produced.
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My build thread. 1977 C10 short box. >>>> http://67-72chevytrucks.com/vboard/s...d.php?t=624182 700R4 build thread. >>> http://67-72chevytrucks.com/vboard/s...36#post6740236 |
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04-02-2014, 07:33 PM
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#4 |
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Registered User
Join Date: Oct 2003
Location: OC CA
Posts: 1,374
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Re: Need new heads (350) best upgrade for "stock" app?
Vortec heads are great flowing stock heads, but require a vortec specific intake manifold and in a stock condition will not take more than 0.450 valve lift. Also, OE vortec heads are prone to cracking between adjacent exhaust ports. I had toss two sets into recycle bin after magnaflaxing showed cracks.
//RF
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"The Beast" 1975 Chevrolet C20 longbed 350/700R4! with 3inch body lift Dual Flowmasters Super 40's! TBI retrofit completed (2007-07-29)  New 383CID (+030) 08-304-8 9.5:1CR x36,005 (2012-12-17) |
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04-02-2014, 08:27 PM
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#5 |
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Registered User
Join Date: Jun 2011
Location: Calgary, AB, Canada
Posts: 146
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Re: Need new heads (350) best upgrade for "stock" app?
What about aftermarket heads, something I can drop onto a stock 350 that will gain maybe a little hp. Or would y'all suggest getting the stock heads ported and polished?
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-Justin. The past cannot be edited, or erased. Only accepted. Loud, proud and country by the grace of god! Bradley Anderson 1997-2011 |
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04-02-2014, 08:56 PM
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#6 |
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Registered User
Join Date: Mar 2014
Location: OKC
Posts: 31
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Re: Need new heads (350) best upgrade for "stock" app?
Maybe get your stock ones machined to 2.02/1.60 valves and port and polish. You'd definitely gain some horsepower.
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=1987 Chevrolet R10 Shortwide SBC= |
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04-02-2014, 09:02 PM
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#7 |
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Registered User
Join Date: Dec 2013
Location: pulaski, wi
Posts: 54
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Re: Need new heads (350) best upgrade for "stock" app?
Most of the engine machine shop around me have oem sbc heads that they sell, fresh valve job and re-surfaced. Ready to bolt and at a good price.
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04-02-2014, 09:11 PM
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#8 |
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Registered User
Join Date: Dec 2012
Location: Temple City
Posts: 3,567
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Re: Need new heads (350) best upgrade for "stock" app?
Summit sells upgraded Vortecs cheap compared to other heads for the hp level.
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04-03-2014, 12:13 AM
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#9 |
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Registered User
 
Join Date: Feb 2011
Location: Knoxville, TN
Posts: 362
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Re: Need new heads (350) best upgrade for "stock" app?
I've done the Vortec head search in junk yards.. I pulled 6 heads and only found one that wasn't cracked. Inspect them closely. I ended up buying one new one to go with the rebuilt used one.
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04-03-2014, 10:59 AM
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#10 | |
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Registered User
Join Date: Jan 2014
Location: Indpls. , IN
Posts: 795
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Re: Need new heads (350) best upgrade for "stock" app?
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04-03-2014, 11:24 AM
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#11 |
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Registered User
Join Date: Feb 2011
Location: Knoxville, TN
Posts: 362
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Re: Need new heads (350) best upgrade for "stock" app?
Yes, they all showed a propensity to crack between the intake and exhaust valves in one of the interior cylinders. Mostly #3 or #4 hole..
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04-03-2014, 11:42 AM
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#12 | |
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Registered User
Join Date: Jan 2014
Location: Indpls. , IN
Posts: 795
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Re: Need new heads (350) best upgrade for "stock" app?
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04-03-2014, 12:31 PM
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#13 | ||||
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"I ain't nobody, dork."
Join Date: Sep 2007
Location: Whidbey Island, Washington
Posts: 8,921
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Re: Need new heads (350) best upgrade for "stock" app?
One thing to consider... if this engine is all original and has a lot of miles on it, and you throw a new set of heads on it with new valves and seals... you will start sucking oil past the rings.
Gary
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'cuz chicks dig scars... My 1972 GMC 1500 Super Custom (Creeping Death) "long term" build thread. The Rebuild of Creeping Death after the wreck Quote:
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04-03-2014, 02:15 PM
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#14 |
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Registered Truck Offender
Join Date: May 2008
Location: hells training ground (aka Ariz)
Posts: 3,118
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Re: Need new heads (350) best upgrade for "stock" app?
As much as I hate the imported crap... If your going to do Vortecs, do this
http://www.summitracing.com/parts/su...make/chevrolet You can not buy used, put new valves, seats, springs, guides, seals and retainers and cut for .52 lift,,, into a used set for this! (about $630) You would still need the required Vortec intake, and self aligning rockers, but it's a no brainer for a vortec move. This skips the headache of the worn out nearly 2 decade old production Vortec heads you find in scrap yards. (L31 was only in 96-99 models) Myself I have 2 vortec motors (one for towing , 383 with RHS Vortecs, one for cruising 327 with Edelbrock E-tec's) Honestly all the hype is just that IMPO,, HYPE. They are just a good flowing STOCK PRODUCTION HEAD,,, nothing special. If you want something significantly more than STOCK PRODUCTION stuff,, it's going to get into your pocket WELL more than the Vortecs. but, just my 2¢
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Still playin with trucks, even at my age! When you're dead, it's only a problem for the people around you, because you don't know you're dead. .....It's kinda the same when your STUPID. I just did my taxes and reviewed my SS statement. Thanks to the current administration it looks like I will only have to work till noon on the day of my funeral. |
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04-03-2014, 04:43 PM
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#15 |
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Registered User
Join Date: Jun 2011
Location: Calgary, AB, Canada
Posts: 146
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Re: Need new heads (350) best upgrade for "stock" app?
Yea, basically I want a set of heads that will flow better, maybe a little more hp that won't alter the compression ratio and that will work with stock components. I have heard good things about the edelbrock aluminium ones.
__________________
-Justin. The past cannot be edited, or erased. Only accepted. Loud, proud and country by the grace of god! Bradley Anderson 1997-2011 |
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04-04-2014, 03:31 AM
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#16 |
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Registered User
Join Date: Jan 2014
Location: Indpls. , IN
Posts: 795
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Re: Need new heads (350) best upgrade for "stock" app?
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04-04-2014, 10:04 PM
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#17 |
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Account Suspended
Join Date: Mar 2013
Location: lumberton tx
Posts: 575
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Re: Need new heads (350) best upgrade for "stock" app?
I did vortec heads last auagust. My 350 was stock besides flat top pistons. Also did a slightly larger than stock cam. Had to do the intake too. Wow, compression went thru the roof. Truck will burn tires now amd lots louder.
I spent over 1000 though and thays not inclusing heads. They were free. Intake, gaskets, cam springs etc.Intake was only like 150 bucks. I love the swap wiuld rec it to anyone |
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