What heads to use on 396 stroker?
#1
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What heads to use on 396 stroker?
Just wondering what kind of heads guys are running on their 396 stroker motors? Also what extra work will i need to have done to the heads to make them flow enough for that cubic inch? Thanks.
#4
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Don't be a dooshbag, he asked what heads 396'ers are running. Do you have a 396 or are you still on your stock shortblock?
Second poster was right le3 or AFR's will move a lot of air for little cash.
I'd just buy the head and cam together and trust a place like speed or thunder. Buy a proven combo from texas speed
I don't know the proper way to port and polish LTX heads, but I'm sure someone around here does.
Second poster was right le3 or AFR's will move a lot of air for little cash.
I'd just buy the head and cam together and trust a place like speed or thunder. Buy a proven combo from texas speed
I don't know the proper way to port and polish LTX heads, but I'm sure someone around here does.
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Do you know where a good link is about porting stock lt1 heads?
I ask bc I'm about to pick up a 97 formula with a 224/230 and stock heads. I want to port the stock heads since I hear they flow as much as any others
I ask bc I'm about to pick up a 97 formula with a 224/230 and stock heads. I want to port the stock heads since I hear they flow as much as any others
#7
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yes contact Lloyd Elliot, www.Elliottsportworks.com He is amazing and makes custom cams, my stock short bock build it making 420 or so rwhp threw a dana S60 NA
Your gonna need a bigger cam to run 10s NA
Your gonna need a bigger cam to run 10s NA
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#8
Ported stockers will work, but even 285cfm heads will begin to become a restriction on a 600hp motor.
Your head choice depends heavily on your goals, budget and the rest of the combination.
I went with a set of LE-ported Dart heads, they flow about 299cfm@.600, which is
about right to support the estimated output for this motor. I've seen those castings
ported to flow just under 330cfm, which was appropriate for the owner's ~700hp SR setup.
Remember, the goal is to maximize efficiency and "bigger" is not always better.
If you can maintain intake velocity, you'll keep those cyls filled for maximum power in the
cam's peak RPM range.
Your head choice depends heavily on your goals, budget and the rest of the combination.
I went with a set of LE-ported Dart heads, they flow about 299cfm@.600, which is
about right to support the estimated output for this motor. I've seen those castings
ported to flow just under 330cfm, which was appropriate for the owner's ~700hp SR setup.
Remember, the goal is to maximize efficiency and "bigger" is not always better.
If you can maintain intake velocity, you'll keep those cyls filled for maximum power in the
cam's peak RPM range.
#9
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You need a big head, the bigger the better.
People think that a "300" cfm head will support 600 hp. No it wont and heres why. When you bolt the intake tract to a set of heads you lose upwards of 20% of the flow, depending on how good or bad the intake tract is.
And if you ever see or hear someone say port and "POLISH" heads. Steer away from them , they havent a CLUE. No one who ports heads has "POLISHED" a head or intake for that matter in 30 years.
Porting a LT1 head is no different than porting a regular Gen1 head.
AFR, TFS or DART with 210CC or bigger ports to make some real power on a 396.
People think that a "300" cfm head will support 600 hp. No it wont and heres why. When you bolt the intake tract to a set of heads you lose upwards of 20% of the flow, depending on how good or bad the intake tract is.
And if you ever see or hear someone say port and "POLISH" heads. Steer away from them , they havent a CLUE. No one who ports heads has "POLISHED" a head or intake for that matter in 30 years.
Porting a LT1 head is no different than porting a regular Gen1 head.
AFR, TFS or DART with 210CC or bigger ports to make some real power on a 396.
Last edited by FASTFATBOY; 01-30-2009 at 11:05 AM.
#10
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BIG runner CNCed AFRs would be my first choice
#11
x2
Mine will be here today! They were actually here on wednesday (28th) and on thursday but I wasn't home to sign, oops, lol! Ordered them late in the day on tuesday the 13th. They said it would be about 2 weeks to build them, so they were right on.
Mine will be here today! They were actually here on wednesday (28th) and on thursday but I wasn't home to sign, oops, lol! Ordered them late in the day on tuesday the 13th. They said it would be about 2 weeks to build them, so they were right on.
Last edited by joelster; 01-30-2009 at 09:32 AM.
#13
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Thanks for the replys! I'm looking to make around 550 NA and i want the car streetable .
But now that i've added up all the parts to do the 396 and im thinking to do a ls swap. Just seems like the better way to go and i will spend less money for the same power. Plus I got the option to boost it later on down the road. don't get me wrong i want to stick with the lt1 but common sense leans toward the ls motor set up what do ya think?
But now that i've added up all the parts to do the 396 and im thinking to do a ls swap. Just seems like the better way to go and i will spend less money for the same power. Plus I got the option to boost it later on down the road. don't get me wrong i want to stick with the lt1 but common sense leans toward the ls motor set up what do ya think?
#14
Thanks for the replys! I'm looking to make around 550 NA and i want the car streetable .
But now that i've added up all the parts to do the 396 and im thinking to do a ls swap. Just seems like the better way to go and i will spend less money for the same power. Plus I got the option to boost it later on down the road. don't get me wrong i want to stick with the lt1 but common sense leans toward the ls motor set up what do ya think?
But now that i've added up all the parts to do the 396 and im thinking to do a ls swap. Just seems like the better way to go and i will spend less money for the same power. Plus I got the option to boost it later on down the road. don't get me wrong i want to stick with the lt1 but common sense leans toward the ls motor set up what do ya think?
understanding of what all is involved (for the swap and ongoing).
Also, be sure you are comparing apples to apples when looking at price/hp. (IE: same quality components)
#17
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TRICK FLOW HEADS. Big valves. Ported by someone good. As long as you have flattop pistons compression shouldn't be a problem since you can only go so far milling the AFR's and TFS heads with big valves. My dad has some LE trick flow heads, they flow 296@.600 and 220 on the exhaust. Chambers are 62cc. Great heads.
#19
AI dumdumdum...period.
How would you like to run at least 9.6x @ 140+ in 1000+ DA (530+rwhp) on a pump gas 383 LT1...go get the AI TFS 215's, get a modified intake...and call it a day.
Obviously its not THAT easy, but the parts will support the power and the end result.
How would you like to run at least 9.6x @ 140+ in 1000+ DA (530+rwhp) on a pump gas 383 LT1...go get the AI TFS 215's, get a modified intake...and call it a day.
Obviously its not THAT easy, but the parts will support the power and the end result.
#20
It's exactly the same as buying a protein powder with a picture of Dexter Jackson (Mr Olympia for those who don't know), and thinking you are going to end up looking like that. There's a little more to it than what it seems.