This listing is for a single BRAND NEW Trickflow PowerPort Big Block Mopar 270cc cylinder head, TFS-61617801-C01 which include .650 max lift springs for hydraulic flat tappet camshafts.
Trick Flow PowerPort 270 heads for big block Mopar are far better than stock and other aftermarket aluminum heads for several reasons. The PowerPort 270 heads rocker shaft and runner areas have been enhanced to increase strength, and the oil holes for the rocker shafts were relocated to improve oiling. To greatly reduce weight and increase strength, the heads are cast in premium grade A356-T61 aluminum. Other advantages of these heads include clearance for 3/8" pushrods, ductile iron valve seats, bronze alloy valve guides, and multi-angle valve seat machining performed on precision Serdi equipment.
The PowerPort 270 heads feature larger, raised Max Wedge-style intake runners that provide a straighter path to the valve for improved airflow. The runners are treated to Trick Flow’s signature high resolution CNC Competition Ported surface finish that guarantees proper dimensional accuracy with balanced flow from runner-to-runner for maximum power potential.
Assembled cylinder heads come with premium 11/32" stainless steel valves, Trick Flow by PAC Racing valve springs, chromoly and titanium retainer options, and 7° or 10° steel valve stem locks. Trick Flow designed the PowerPort 270 heads to use all factory-style big block Mopar pistons, roller rocker arms, and headers. A Max Wedge-style intake manifold is recommended for best performance.
Part Number: TFS-61617801-C01
Part Type: Cylinder Heads
Product Line: Trick Flow® PowerPort® 270 Cylinder Heads for Big Block Mopar
UPC: 842645116889
Cylinder Head Style: Assembled
Cylinder Head Material: Aluminum
Cylinder Head Finish: Natural
Combustion Chamber Volume (cc): 78
CNC-Machined Combustion Chamber: Yes
Intake Runner Volume (cc): 270cc
Exhaust Runner Volume (cc): 74cc
CNC-Machined Intake Runner: Yes
CNC-Machined Exhaust Runner: Yes
Combustion Chamber Style: Heart
Intake Port Shape: Rectangular
Intake Port Location: Standard
Exhaust Port Shape: Oval
Exhaust Port Location: Standard
Intake Valves Included: Yes
Intake Valve Diameter (in): 2.190 in.
Exhaust Valves Included: Yes
Exhaust Valve Diameter (in): 1.760 in.
Valve Springs Included: Yes
Maximum Valve Lift (in): 0.650 in. hydraulic flat tappet
Outside Diameter of Outer Spring (in): 1.460 in.
Damper Spring Included: Yes
Number of Springs Per Valve: Dual
Retainers Included: Yes
Retainer Material: Steel
Locks Included: Yes
Lock Style: 7 degree
Valve Stem Seals Included: Yes
Valve Stem Seal Style: Positive stop
Rocker Arm Studs Included: No
Rocker Arms Included: No
Rocker Arm Nuts Included: No
Guideplates Included: No
Valve Cover Mounting Style: Perimeter bolt
Accessory Bolt Holes Drilled: Yes
Intake Valve Angle: 15
Exhaust Valve Angle: 15
Valve Guides Included: Yes
Valve Guide Material: Bronze
Valve Seats Machined: Yes
Valve Seat Machine Style: 3-angle
Valve Seat Material: Ductile iron
Steam Holes Drilled: No
Oiling Style: Through head
Machined for O-Ring: No
Heat Crossover: No
Quantity: Sold individually.
Notes: Longer than stock pushrods may be required.
