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Butler Built Edelbrock D-Port, 72cc, Hyd. Roller. Cylinder Head, Fast-Burn CNC Chambers, Set/2 BPI-61595BP-2

BPI-61595BP-2
Need something better than standard out of the box heads? These are built and blueprinted by Butler Performance Pontiac in our shop.
Availability: Due to popular demand the are custom built and ready in 6-8 weeks or less
Pricing: $2,649.95

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Description

Butler Performance built Edelbrock out of box heads

BP/Edelbrock 61595 Complete Heads

Our Heads feature Edelbrock bare casting cores with all machine work done in our head shop. They are fitted with Ferrea Valves, new guides, Comp Cams Springs, Comp locators, Comp Retainers and Locks. They can optionally be slotted to accept 1.65 rockers if needed.

These heads are custom built per order by Butler Performance

(D-PORT 72cc Chamber): Flow Numbers as tested by Edelbrock's SuperFlo SF-1020 flow bench @ 28" H2O
Valve Lift .100" .200" .300" .400" .500" .600" .700"
Intake 65 136 199 237 255 262 263
Exhaust 52 103 130 245 151 157 159

They feature optimized oil return passages for increased oil flow. These heads are available in three heart shaped combustion chamber sizes, 72cc and 87cc. The 72cc and 87cc chambers are fully CNC’d to provide a 9.5:1 compression ratio when used with flat-top pistons. The spark plug has been relocated closer to the exhaust valve for improved performance. These heads are cast with extra thick port walls and a compact port size, making them ideal for CNC and hand porting. Complete cylinder heads include guide plates, rocker studs and high quality valvetrain for direct bolt-on application.

Compression Ratio Numbers for Reference (Compression ratio with Block, Head, and Stroke with -8cc FT)

400 Block Head cc w/-8cc Flat top
Stroke Bore 72cc 87cc
3.750" 4.155" 10.38 9.02
4.181" 10.48 9.11
4.000"

4.155"

11 9.55
4.181" 11.12 9.65
4.210" 4.155" 11.53 10
4.181" 11.65 10.1
4.250" 4.155" 11.63 10.09
4.181" 11.75 10.19
4.500" 4.155" 12.25 10.62
4.181" 12.38 10.73

 

455 Block Head cc w/-8cc Flat top
Stroke Bore 72cc 87cc
4.000"

4.181"

11.12 9.65
4.211" 11.25 9.76
4.210" 4.181" 11.65 10.1
4.211" 11.78 10.22
4.250" 4.181" 11.75 10.19
4.211" 11.89 10.31
4.500" 4.181" 12.38 10.73
4.211" 12.53 10.86

Click Here for our compression calculator for other variations such as bore, gasket thickness, decking, and piston types and volumes

 

Details

  • BPI-61595BP-2
  • BPI-61595BP-2
  • Butler Performance
  • Due to popular demand the are custom built and ready in 6-8 weeks or less
  • New

Shipping Information

  • Item Requires Shipping
  • 80.0 lbs.
  • Free Shipping!

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