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Old 10-08-2010, 06:05 PM   #1
parky33
 
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Default ford racing 302

My ford 302 crate engine has alloy gt40 heads (y302) and a weiand 174 blower
C4 tci auto 3.25gears car weighs 2650lbs and best pb 10.72 @125mph

What more could I expect from a set off Dart cnc pro 1 heads on this engine
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Old 10-10-2010, 01:07 PM   #2
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Originally Posted by parky33 View Post
My ford 302 crate engine has alloy gt40 heads (y302) and a weiand 174 blower
C4 tci auto 3.25gears car weighs 2650lbs and best pb 10.72 @125mph

What more could I expect from a set off Dart cnc pro 1 heads on this engine
exact same combination with just the head change will pick you up about 75-100 hp but you will have to change the bottom or top pulley. You will have less boost with the larger intake and intake runner. But if you put the same boost, lets say you had 10 and you have 10 back with the killer DART heads, you will pick up a ton! Do it, remember, the DART head is not friendly to your headers, it has a wider exhaust bolt pattern that helps with the exhaust port and stripped out header fasteners. ! Headers are pricey.
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Old 10-11-2010, 12:59 PM   #3
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Would have to change headers anyway as they are 1.5 inch dia primarys
can you buy header flanges to suit these heads as I would have to make my own set up as I am tight for room in the engine bay.also would the normal ford racing head gaskets still fit.
My gt 40 heads have roller rockers that are adjusted with shims would i still be able to use these or do i have to purchase other type
Cheers Andy

Last edited by parky33; 10-11-2010 at 01:18 PM.
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Old 10-13-2010, 08:36 PM   #4
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Default dart heads for 302 ford small block

Dart cnc pro 1 heads part number 13072142
do you have a spec sheet for these heads
thanks Andy
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Old 10-18-2010, 01:02 PM   #5
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http://www.dartheads.com/products/cy...der-heads.html

Check the left side of that page for spec sheet downloads.
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Old 11-05-2010, 11:24 AM   #6
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Originally Posted by parky33 View Post
My ford 302 crate engine has alloy gt40 heads (y302) and a weiand 174 blower
C4 tci auto 3.25gears car weighs 2650lbs and best pb 10.72 @125mph

What more could I expect from a set off Dart cnc pro 1 heads on this engine
how much does that thing weigh?
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Old 11-05-2010, 11:46 PM   #7
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how much does that thing weigh?
Car with driver 1200 kg uk
or 1.322 US Tons
or 1.18 Uk Tons or 2645.5 pounds
Does this help
Andy
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Old 11-10-2010, 10:34 AM   #8
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Car with driver 1200 kg uk
or 1.322 US Tons
or 1.18 Uk Tons or 2645.5 pounds
Does this help
Andy
with the gear ratio, tire size, weight, transmission etc, you making a little over 400hp. Not bad for your combination. The Dart Pro 1 CNC head will really bring that thing around 9 seconds is not out of the question and most likely easily attainable. with 15lbs of boost, a little better fuel, 550-600 hp is pretty easy with a blower. The Dart heads have a wide exhaust pattern so be careful, you may need custom headers? Go for it. If I can help in any way, let me know.
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Old 11-10-2010, 08:31 PM   #9
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Cheers Bill
Have now bought a set off the dart cnc pro 1 heads
Got some other stuff to buy and hope to get started working on the car at the end off the year
Andy
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Old 02-28-2012, 06:24 PM   #10
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Default shp block sbf

heres my new engine getting dynod
http://youtu.be/9qFsPlXIzEQ
Dart block SHP ,dart pro 1 cnc 225 heads,weiand 174 blower 6psi boost 4.125 x 3.25.....comp 8.6:1
Torque 480 @ 3000 revs right up to 6300 revs peaking at 536 @ 5000 revs... HP 582.4
Had smaller pulley but was slipping too much........all forged internals,Ross pistons, Comp Cam etc
Built by John Sleath Race Cars
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