220cc head opinion needed..
Thread Starter
Racer
Joined: Nov 2004
Posts: 445
Likes: 0
220cc head opinion needed..
How will 220cc int. vol. heads with flow nos. inl.205cfm @.300, 250 @.400, 265 @.500 and 272 @.600 work on a 383?
Will the intake volume cause a significant loss in low-mid-range torque, or will the 383 cubes be able to support it?
With low down grunt/torque being a consideration, any thoughts on ball-park nos. for a cam?
These heads were on a 350 street car, but was a pig to drive below 3500rpm...pulled strong to 7000, though..
I was wondering if they would behave similarly in a larger cube engine..
Btw the heads in question are Pro Iron Lightning.
Will the intake volume cause a significant loss in low-mid-range torque, or will the 383 cubes be able to support it?
With low down grunt/torque being a consideration, any thoughts on ball-park nos. for a cam?
These heads were on a 350 street car, but was a pig to drive below 3500rpm...pulled strong to 7000, though..
I was wondering if they would behave similarly in a larger cube engine..
Btw the heads in question are Pro Iron Lightning.
Team Owner
Joined: Oct 2004
Posts: 35,065
Likes: 0
From: Bergen County, NJ Democrats, doing for the country what they did for Michigan
How will 220cc int. vol. heads with flow nos. inl.205cfm @.300, 250 @.400, 265 @.500 and 272 @.600 work on a 383?
Will the intake volume cause a significant loss in low-mid-range torque, or will the 383 cubes be able to support it?
With low down grunt/torque being a consideration, any thoughts on ball-park nos. for a cam?
These heads were on a 350 street car, but was a pig to drive below 3500rpm...pulled strong to 7000, though..
I was wondering if they would behave similarly in a larger cube engine..
Btw the heads in question are Pro Iron Lightning.
Will the intake volume cause a significant loss in low-mid-range torque, or will the 383 cubes be able to support it?
With low down grunt/torque being a consideration, any thoughts on ball-park nos. for a cam?
These heads were on a 350 street car, but was a pig to drive below 3500rpm...pulled strong to 7000, though..
I was wondering if they would behave similarly in a larger cube engine..
Btw the heads in question are Pro Iron Lightning.
They're too big for a 383 IMO. They will be better than the 350, but still too big.
Advanced
Joined: Jan 2005
Posts: 63
Likes: 0
From: Southgate Mi.
Way too big, especially with TPI (I see that your car is an 86 w/87 motor). Those heads are more suited for a 400+ cu. in. motor. The low speed air velocity on a smaller motor kills the driveability. I know that you don't want to hear that, because you already have the heads.
You'd be better off w/180~200 cc intake on a 383.
You'd be better off w/180~200 cc intake on a 383.
Advanced
Joined: Jan 2005
Posts: 63
Likes: 0
From: Southgate Mi.
You dodged that bullet!
Better to hear here, than "Get a Good Deal" and have to suffer the poor performance the would have followed. Look around, there's plenty of used/new heads to choose from.
Don't go too big or you'll be sorry!
Better to hear here, than "Get a Good Deal" and have to suffer the poor performance the would have followed. Look around, there's plenty of used/new heads to choose from.
Don't go too big or you'll be sorry!
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220cc is too big. I went with 170cc heads on my L98 and it likes to bog some below 1100 rpms. 
Safety Car
Joined: Apr 2004
Posts: 4,532
Likes: 7
From: Lahaina Hi
I run AFR 220 on my 355ci it runs just fine 
I do have taller gears though 3.92 and a 3200 stall.
I also have a 200 shot that I flipped on once or twice,runs like a raped ape.
If you want to use it as a daily driver you can use the stock exaust ,the back presure will give it a better idle.
If you use after market pipes it will stall in traffic ,alot or have a slight dead spot.
But it does depend if you are going to deck the block and what compression your pistons are.
I do have taller gears though 3.92 and a 3200 stall.
I also have a 200 shot that I flipped on once or twice,runs like a raped ape.
If you want to use it as a daily driver you can use the stock exaust ,the back presure will give it a better idle.
If you use after market pipes it will stall in traffic ,alot or have a slight dead spot.
But it does depend if you are going to deck the block and what compression your pistons are.
