What Heads for my 408???
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What Heads for my 408???
Been slowing putting together a 408 build. Getting the stock 6.0L Iron block bored to 4.030 this week and then I am going to start on parts..
I live in OK and even though this isn't my DD, I do drive it daily since it gets better MPG's than my pickup. I am putting a 408 together to swap in it and want it streetable . I want it streetable even if I don't drive it everyday.
My problem is, WHAT HEADS?? I am pretty sure on the TSP Giant cam though. And I want around 11:1 compression. Maybe more or less? It's ALL up in the air right now.
I want around 530-540RWHP and right around 500RWTQ.
My advantage is my Uncle and Grandpa run a Custom Engine shop here and they can get parts 25%-30% cheaper than I can off TSP or anything like that with all the Porting and Polishing capability with their shop's machines. Also I will get free labor on putting it all together the professional way. They do high-end build for old and new muscle cars and a BUNCH of the sprint car motors here that put out 500-600HP out of a SBC motor with 5.88 gears around a dirt track
So what heads? Here are some I have been looking at.. Remember I am wanting Around 11:1 compression, maybe more if I can get away with it??
Motor specs.
Bore: 4.030
Stroke: 4.000
Deck Height: ? Stock 02 2500HD 6.0L block
Head Gasket: Up in the air right now, .045 or .055 depending on CR
Pistons: Depends on heads/and CR
http://www.c5frc.com/calculators/Com...Calculator.htm
Here are the heads. Anything else is possible.. Just want around that CR.. Or better if someone has any more info..
http://www.texas-speed.com/shop/item...d=135&catid=40
http://www.worldcastings.com/prods_p...arhawkls1x.htm
http://www.trickflow.com/egnsearch.a...0&autoview=sku
This is the last motor they did for my last DD, 98 Grand Prix GTP motor (bought it with a spun bearing)
I live in OK and even though this isn't my DD, I do drive it daily since it gets better MPG's than my pickup. I am putting a 408 together to swap in it and want it streetable . I want it streetable even if I don't drive it everyday.
My problem is, WHAT HEADS?? I am pretty sure on the TSP Giant cam though. And I want around 11:1 compression. Maybe more or less? It's ALL up in the air right now.
I want around 530-540RWHP and right around 500RWTQ.
My advantage is my Uncle and Grandpa run a Custom Engine shop here and they can get parts 25%-30% cheaper than I can off TSP or anything like that with all the Porting and Polishing capability with their shop's machines. Also I will get free labor on putting it all together the professional way. They do high-end build for old and new muscle cars and a BUNCH of the sprint car motors here that put out 500-600HP out of a SBC motor with 5.88 gears around a dirt track
So what heads? Here are some I have been looking at.. Remember I am wanting Around 11:1 compression, maybe more if I can get away with it??
Motor specs.
Bore: 4.030
Stroke: 4.000
Deck Height: ? Stock 02 2500HD 6.0L block
Head Gasket: Up in the air right now, .045 or .055 depending on CR
Pistons: Depends on heads/and CR
http://www.c5frc.com/calculators/Com...Calculator.htm
Here are the heads. Anything else is possible.. Just want around that CR.. Or better if someone has any more info..
http://www.texas-speed.com/shop/item...d=135&catid=40
http://www.worldcastings.com/prods_p...arhawkls1x.htm
http://www.trickflow.com/egnsearch.a...0&autoview=sku
This is the last motor they did for my last DD, 98 Grand Prix GTP motor (bought it with a spun bearing)
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I have TSP's 5.3 2.5's and a MS3. dont have any numbers yet....
but they are probably a little small for a 408 to be honest.
If your not wanting to spend huge coin, I'd look into the new PRC 215's.
but they are probably a little small for a 408 to be honest.
If your not wanting to spend huge coin, I'd look into the new PRC 215's.
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Anyone with more info? As far as what heads/cam they have and what numbers they put down?
I am really liking the TF 235CC runners and 70cc chambers right now due to the fact its a good sized runner, and with 70cc chambers on a 408 with a little tighter quench (.045 MLS gasket) I will be right at 11:1 CR
I am really liking the TF 235CC runners and 70cc chambers right now due to the fact its a good sized runner, and with 70cc chambers on a 408 with a little tighter quench (.045 MLS gasket) I will be right at 11:1 CR
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Now my car is Not a DD.. But I do drive it daily.. Well lets just say I have other transportation if I choose to drive it.. But the T/A is just so much better!!