aluminum vortech heads - The 1947 - Present Chevrolet & GMC Truck Message Board Network

68_-c\10 · 01-20-2013, 07:59 PM

Does anyone know if an 04 5.3 litre aluminum heads will fit on a 70s 350 block

towbar · 01-20-2013, 08:02 PM

unfortunately they will not!

68_-c\10 · 01-20-2013, 08:07 PM

Do you know what years of vortech aluminum heads will work?

towbar · 01-20-2013, 08:19 PM

never made a factory vortec head in aluminum that will fit a gen 1 sbc...that I'm aware of??? The LS series engines that have the heads I think your referring to share virtually nothing with the gen 1 engines. 96 up 350 vortec's that come in trucks and vans have iron heads that will bolt on a gen 1 sbc if you use a vortec specific intake manifold....have a set on my 84 350 and they work well but are limited in valve lift capability in stock configuration.

b.eddy's72 · 01-20-2013, 09:05 PM

towbar is correct...............you can get the L31 Vortec heads off like a 96 chevy truck and they are bolt on however you have to get a Vortec style intake manifold. Scoggins Dickie as well as others offer them in a high lift option for bigger cams. The factory Vortec heads offer 30-40 hp right off the shelf. Retaining a older style engine and using these heads is a awsome way to get cheap power.

GASoline71 · 01-21-2013, 01:01 AM

No modern LS based heads (4.8, 5.3, 6.0) will fit first or second generation SBC's.

Gary

Husker · 01-21-2013, 11:29 AM

Quote:

The factory Vortec heads offer 30-40 hp right off the shelf. Retaining a older style engine and using these heads is a awsome way to get cheap power.

Any particular year or casting # to look for?
Thanks
Ron

BigRed76 · 01-21-2013, 11:34 AM

I know JEGS offers an aluminum casting of the vortec heads...

http://www.jegs.com/i/GM+Performance...FUZgMgod_3QAhg

b.eddy's72 · 01-21-2013, 02:56 PM

http://www.crankshaftcoalition.com/w..._cylinder_head

Check the WIKI at the link above and it will tell you all about them. If somebody has them they will know them as L31 Vortec. Or should I sometimes give to much credit.

01-20-2013, 07:59 PM	#1
68_-c\10 Registered User $68_-c\10's Avatar$ Join Date: Aug 2012 Location: Scottsburg,IN Posts: 85	aluminum vortech heads Does anyone know if an 04 5.3 litre aluminum heads will fit on a 70s 350 block
$68_-c\10 is offline$

01-20-2013, 08:02 PM	#2
towbar Registered User Join Date: Jul 2012 Location: Marshall, NC....heart of the Appalachians.....aka, Gods country!! Posts: 537	Re: aluminum vortech heads unfortunately they will not!

01-20-2013, 08:07 PM	#3
68_-c\10 Registered User $68_-c\10's Avatar$ Join Date: Aug 2012 Location: Scottsburg,IN Posts: 85	Re: aluminum vortech heads Do you know what years of vortech aluminum heads will work?
$68_-c\10 is offline$

01-20-2013, 08:19 PM	#4
towbar Registered User Join Date: Jul 2012 Location: Marshall, NC....heart of the Appalachians.....aka, Gods country!! Posts: 537	Re: aluminum vortech heads never made a factory vortec head in aluminum that will fit a gen 1 sbc...that I'm aware of??? The LS series engines that have the heads I think your referring to share virtually nothing with the gen 1 engines. 96 up 350 vortec's that come in trucks and vans have iron heads that will bolt on a gen 1 sbc if you use a vortec specific intake manifold....have a set on my 84 350 and they work well but are limited in valve lift capability in stock configuration.

01-20-2013, 09:05 PM	#5
b.eddy's72 Registered User Join Date: Nov 2009 Location: WEATHEROFRD, TX Posts: 164	Re: aluminum vortech heads towbar is correct...............you can get the L31 Vortec heads off like a 96 chevy truck and they are bolt on however you have to get a Vortec style intake manifold. Scoggins Dickie as well as others offer them in a high lift option for bigger cams. The factory Vortec heads offer 30-40 hp right off the shelf. Retaining a older style engine and using these heads is a awsome way to get cheap power. __________________ 72 Chevy LB, LS in the works, 4L80, Grandfather bought it brand new. 66 GMC Short Step, 84 Front Suspension, many more mods to come 67 Chevy 3/4 Ton, 327, Auto, Factory A/C Ya must have been movin cause I was haulin a*$ when I passed you

01-21-2013, 11:34 AM	#8
BigRed76 Registered User Join Date: Jan 2010 Location: Loveland, CO Posts: 1,921	Re: aluminum vortech heads I know JEGS offers an aluminum casting of the vortec heads... http://www.jegs.com/i/GM+Performance...FUZgMgod_3QAhg __________________ Zach 1970 Chevrolet Custom Camper K20 1971 GMC Super K2500, 12V/NV4500 swap in progress 1971 Chevrolet Custom C10 1972 Chevrolet Custom Deluxe C20, 5.3/4L60E 1972 Oldsmobile Cutlass Supreme, 455/TH400, 3.73 posi 2004 GMC Sierra 2500HD, LB7/Allison, CCSB 2005 GMC Sierra 1500, 5.3/4L60E, CCSB

01-21-2013, 02:56 PM	#9
b.eddy's72 Registered User Join Date: Nov 2009 Location: WEATHEROFRD, TX Posts: 164	Re: aluminum vortech heads http://www.crankshaftcoalition.com/w..._cylinder_head Check the WIKI at the link above and it will tell you all about them. If somebody has them they will know them as L31 Vortec. Or should I sometimes give to much credit. __________________ 72 Chevy LB, LS in the works, 4L80, Grandfather bought it brand new. 66 GMC Short Step, 84 Front Suspension, many more mods to come 67 Chevy 3/4 Ton, 327, Auto, Factory A/C Ya must have been movin cause I was haulin a*$ when I passed you



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.