need some advice on heads

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2tines
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need some advice on heads

Post by 2tines » Sun Sep 26, 2010 10:06 pm

i have a 93 350 with 9.5/1 flat tops with iron vortec heads,1.5 rtr and a melling 22210 hydraulic cam with 300 and 307 cam lift 291int and 287 sae duration, alum intake and 650 holley on an airboat, it runs great but and of course i want more.. i am looking at a set of alum heads (http://cgi.ebay.com/ebaymotors/ws/eBayISA PI.dll?ViewItem&item=150 460562265&ssPageName= STRK:MEWAX:IT ) would these heads and a set of 1.6 rtr be a signifigant gain in torque?
"aint got no gas in it" look at the simple things first.

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hmgm123
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Re: need some advice on heads

Post by hmgm123 » Mon Sep 27, 2010 8:50 am

2tines wrote:i have a 93 350 with 9.5/1 flat tops with iron vortec heads,1.5 rtr and a melling 22210 hydraulic cam with 300 and 307 cam lift 291int and 287 sae duration, alum intake and 650 holley on an airboat, it runs great but and of course i want more.. i am looking at a set of alum heads (http://cgi.ebay.com/ebaymotors/ws/eBayISA PI.dll?ViewItem&item=150 460562265&ssPageName= STRK:MEWAX:IT ) would these heads and a set of 1.6 rtr be a signifigant gain in torque?
Your url is no good.

2tines
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Re: need some advice on heads

Post by 2tines » Mon Sep 27, 2010 6:27 pm

hmgm123 wrote:
2tines wrote:i have a 93 350 with 9.5/1 flat tops with iron vortec heads,1.5 rtr and a melling 22210 hydraulic cam with 300 and 307 cam lift 291int and 287 sae duration, alum intake and 650 holley on an airboat, it runs great but and of course i want more.. i am looking at a set of alum heads (http://cgi.ebay.com/ebaymotors/ws/eBayISA PI.dll?ViewItem&item=150 460562265&ssPageName= STRK:MEWAX:IT ) would these heads and a set of 1.6 rtr be a signifigant gain in torque?
Your url is no good.
try this http://cgi.ebay.com/ebaymotors/ws/eBayI ... 3D1&_rdc=1
"aint got no gas in it" look at the simple things first.

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skinny99
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Re: need some advice on heads

Post by skinny99 » Mon Sep 27, 2010 9:11 pm

Dont waste your money. I am looking at doing the same thing and have been doing some research on some car sites and everybody has had bad experiences with this chinese junk. Save up and go with something like this.

http://www.summitracing.com/parts/TFS-30400001/

There is also a guy selling a couple pairs in the classifieds that are a good deal. IMO
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yobee
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Re: need some advice on heads

Post by yobee » Mon Sep 27, 2010 9:23 pm

Your cam is only around .300 lift? Mine is about .500 lift. I also have iron vortec heads. I have thread in studs and springs to accommodate the lift ( I got room for more actually) but I am thinking you could go with a nastier cam. Maybe I am missing something, but vortecs are good flowing heads, can one of you guys that knows your stuff with the cams explain the cam situation to me? Am I thinking right? LOL!
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2tines
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Re: need some advice on heads

Post by 2tines » Mon Sep 27, 2010 10:22 pm

yobee wrote:Your cam is only around .300 lift? Mine is about .500 lift. I also have iron vortec heads. I have thread in studs and springs to accommodate the lift ( I got room for more actually) but I am thinking you could go with a nastier cam. Maybe I am missing something, but vortecs are good flowing heads, can one of you guys that knows your stuff with the cams explain the cam situation to me? Am I thinking right? LOL!
my cam is .300, with 1.5 rockers it moves the valve .450 and a stock vortec head is only good for around .475 i think. if you have screw in studs, maybe something has been done to your heads.
"aint got no gas in it" look at the simple things first.

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watersports7
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Re: need some advice on heads

Post by watersports7 » Thu Sep 30, 2010 9:57 am

good info on L31 vortec heads:

http://www.2quicknovas.com/vortecheads.html
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watersports7
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Re: need some advice on heads

Post by watersports7 » Thu Sep 30, 2010 10:07 am

skinny99 wrote:Dont waste your money. I am looking at doing the same thing and have been doing some research on some car sites and everybody has had bad experiences with this chinese junk. Save up and go with something like this.

http://www.summitracing.com/parts/TFS-30400001/

There is also a guy selling a couple pairs in the classifieds that are a good deal. IMO

Im sure a 'few' folks have actually had good luck with these heads, but they are few and far between... the QC/ QA on them SUX! research is the key! If your gonna do it, do it right the first time... :)

http://www.hotrodders.com/forum/aware-l ... 86598.html

http://www.southernairboat.com/phpBB3/v ... 48&t=29840
12' Predator / Lycoming 4 Cylinder / Old Skool 68x38 Stick Prop
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anvil
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Re: need some advice on heads

Post by anvil » Tue Oct 05, 2010 9:03 am

patriot makes their own heads right here in alabama. Several of the top smal block racers are running versions of their product with good results. I have a set on my new boat and it is making great torqe and hp. Let me know if you want me to hook you up . I am a dealer for their products might can save you some money. pm me if you are interested
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18panther
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Re: need some advice on heads

Post by 18panther » Tue Oct 05, 2010 10:10 am

I ran two sets of after market steel heads on my small block before switching to Dart platinums.

They really woke the motor up,460hp-477tq. And that was without the planned intake and cam change.
Comp sent the cam on the wrong blank so I left the solid and the std. Performer on there.

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Re: need some advice on heads

Post by hooker » Tue Oct 05, 2010 2:30 pm

thats right u could jump an easy 100 hp with a good cam and carb.considering u have a reduction box.

Rich Andrews
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Re: need some advice on heads

Post by Rich Andrews » Tue Oct 05, 2010 2:42 pm

GM's Al heads have more QC standards then most...I know for a fact, we failed the purosity test 5x's yrs ago.

Aftermarket heads ...not saying all,don't have the IPQC(in process quality controlls) like an OEM. It's all in the mods and porting that makes them come alive.

Felber is a genious in this area IMO
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