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5 axis CNC Porting Service (2)
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Cylinder Heads - Aluminum (4)
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Edelbrock 340-350 cfm Std. Pushrod Location Street/Strip Race Heads

(New CNC machined heart shaped chambers with improved spark plug location!!)

Edelbrock head package up to 340cfm on a 4.185" bore and up to 350cfm on a 4.250" or larger bore @ .700" lift. The heads feature 2.200" intake valves for stock block combo's, 2.250" intake valves for larger bore aftermarket block combo's (Note we have to use the old style casting for the larger valves as the valve seats Edelbrock installs in the newer CNC'd chamber heads do not have a big enough dia. for anything larger than 2.200") and high flowing tuliped 1.740" exhaust valves. The exhaust port CNC program is borrowed from our wide port Edelbrock package. These heads on a 10.6 to 1 498ci engine (400 block 4.195" bore 4.5" stroke) on 92 octane produced 700hp @ 6200rpm and 647b/ft of torque @ 4900 rpm with a very street friendly hyd. roller camshaft topped with a port matched Victor with our CNC machined plenum. On a 541ci 10.8 to 1 pump gas engine with one of our custom solid roller cams these heads and matching CNC ported and hand finished Victor intake produced 784.3hp @ 6700rpm and 687.5 lb/ft of torque @ 5400 rpm Here's a link to one of our customers track testing www.sdperformance.com/customerCars_01.php?carID=161 Prices start at $1755.00 each for a flat tappet/hyd. roller package and are a great choice for your big inch street/strip or bracket race build allowing the use of std. valvetrain components.

72cc CNC heart shaped chambers$1755.00 each US Funds

87cc CNC heart shaped chambers$1755.00 each US Funds

Own a set of Edelbrock heads already? We can apply these new bigger flow packages to your existing heads also!!

CNC ported and hand finished Victor intake now available, our CNC machined and hand finished plenum showed 20-25hp gain over an as cast cloverleaf plenum on a back to back dyno test, call for details and pricing!!!

CNC ported and hand finished KRE Northwind Intake now available!!! Call for more details and for a top end package price!!! SAVE $$$$

$ 1755.00 each

$ 2334.15 each

  * SD Performance reserves the right to change prices without notification.