NEW!! 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 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 customers on track testing www.sdperformance.com/customerCars_01.php?carID=161 Prices start at $1347.50 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$1347.50 each US Funds
87cc$1397.50 each US Funds (with SD exclusive CNC machined improved chamber design)
Add $200.00 for heart shaped combustion chamber option, available only on 72cc chamber Edelbrock heads. Call for more details.
Two entrance port heights available for use with std. intakes like the Torker II and Performer RPM or a taller port version (higher flowing 247cc intake runner volume) for use with a Victor or KRE Northwind intakes.
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!!!
Coming soon, CNC ported and hand finished KRE Northwind Intake manifolds!!! Call for details
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 $ 1347.50 each
 $
1471.47 each
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Accepted. 
