18 Degree Intake vs 23 Degree
#13
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Join Date: Nov 2008
Location: Phoenix AZ
Posts: 116
Valve train will need to be a shaft setup with offset lifters, custom length pushrods.
What will need to be done to the headers depends on the heads you choose. A spreadport exhaust will need the middle tubes positioned a little farther away from each other. Different flanges can be welded on.
What will need to be done to the headers depends on the heads you choose. A spreadport exhaust will need the middle tubes positioned a little farther away from each other. Different flanges can be welded on.
#14
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Join Date: Jan 2006
Location: La.
Posts: 2,890
ccperf721p,
You beat me too it, we must have been typing at the same time,
Shaft rockers are also different some take .250 offset intake rockers, requiring a .180 or .200 offset intake roller lifters. I've got a set of Brodix 10's RP,FP's 23* spredports that take the .250 offset rockers and lifters. I bought the T&D rocker from Randy Roberts with the mud truck, that he had on his 18* heads. I'm not sure that all 18* heads require the use of offset lifters. I think this engine will make about 750 HP with injection on alcohol.
I've got a set of Lemon 2"X2 1/8" with 4" collectors that are Malibu specific, but they weren't cheap by any means.
JMO
Zip.
You beat me too it, we must have been typing at the same time,
Shaft rockers are also different some take .250 offset intake rockers, requiring a .180 or .200 offset intake roller lifters. I've got a set of Brodix 10's RP,FP's 23* spredports that take the .250 offset rockers and lifters. I bought the T&D rocker from Randy Roberts with the mud truck, that he had on his 18* heads. I'm not sure that all 18* heads require the use of offset lifters. I think this engine will make about 750 HP with injection on alcohol.
I've got a set of Lemon 2"X2 1/8" with 4" collectors that are Malibu specific, but they weren't cheap by any means.
JMO
Zip.
#16
Senior Member
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Join Date: Apr 2008
Posts: 496
Originally Posted by jreiley
I've looked at Lemon headers, and your right, they are not cheap. The car all this is going into is a 85 Camaro.
#17
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Join Date: Jan 2006
Location: La.
Posts: 2,890
I could not afford those prices, but i really lucked out. There was police officer in Lansing Mi. who parterned with another person, his motor the officers car. The headers were never ran but installed. They parted company and the cop had them on RJ for $400.00, i got in contact with him and says hey i just put them on Ebay, starting bid $350.00. had 8 egt bungs, all the whisles and bells.
I was the only bidder, because they were made for a 1980 Malibu same as my car, one of the best deals i ever got in my life. He sent me the original bill from Lemons and it said $1350.00, plus bungs.
Zip.
I was the only bidder, because they were made for a 1980 Malibu same as my car, one of the best deals i ever got in my life. He sent me the original bill from Lemons and it said $1350.00, plus bungs.
Zip.
#18
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Join Date: Sep 2005
Posts: 134
Jreiley,I have an 18 deg. head motor in a 83 camaro,same as your 85.I have edelbrock victor 18 heads,lemons headers 2 in. pipe 3.5 col.t&d rockers .550 intake .170 exhaust offsets,.180 offset lifters,18 deg. pistons. Stock body with a cage,stock type suspension,10 in.slick.Best-1.36 60,6.15 112 1/8 9.67 140 1/4.Street legal antique plate car.Good luck with yours.Bill Bates.
#20
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Join Date: Apr 2003
Location: Brookings South Dakota
Posts: 244
Originally Posted by zipper06
Originally Posted by cncmotorsports
Originally Posted by jreiley
Don't the 12,15 and 18 degree heads use the same intake and exhaust.
700 HP is easy with either 23 degree or 18 degree
Carb to pan.
JMO
Zip.
http://www.cnc-motorsports.com/produ...25&CtgID=29564
I will agree 18 degree will make more power, but unless you plan on buying used parts, $10,000 is a tight budget carb to pan.
Just saying 23 degree heads can make 700 plus horsepower.