PowerPort ® 240, 270, and 295 Cylinder Heads for Big Block Mopar Dyno Results PowerPort 295 Test Engine: 14.85:1 compression Mopar 572 c.i.d. with Trick Flow PowerPort® 295 cylinder heads (TFS-6161T784-C02), custom grind solid roller camshaft (287°/294° duration @ .050"; .752"/.752" lift; 110° lobe separation), Harland Sharp 1.6 ratio shaft mount roller rocker arms, port-matched Trick Flow R-Series intake manifold (TFS-61600115), Holley Dominator 1,250 cfm carburetor, Hooker Super Competition headers with 2" primaries, 3.5" open exhaust. 600 700 800 900 4.5 5.0 5.5 6.0 6.5 7.0 RPM x 1,000 Brake Horsepower/Torque 804 Lbs.-Ft. 863 HP Horsepower Torque Airfl ow Results PowerPort 295 Lift Value Intake Flow CFM Exhaust Flow CFM .100" 72 58 .200" 154 130 .300" 233 186 .400" 295 222 .500" 334 246 .600" 360 265 .700" 376 279 .800" 376 286 Tests conducted at 28" of water (pressure). Bore size: 4.500"; exhaust with 2 1⁄8" pipe. Some parts are not legal for sale or use in California or other states with similar laws/regulations—see pg. 2 for details. WARNING: For Proposition 65 information, see pg. 2 Specifi cations Material: A356-T61 aluminum Combustion Chamber Volume: 78cc CNC-profi led Intake Port Volume: C00: 240cc CNC Street Ported C01: 270cc CNC Competition Ported C02: 295cc CNC Competition Ported Intake Port Location: C00: Stock C01/C02: Raised Max Wedge-style Intake Port Dimensions: C00: 2.270" x 1.230" C01/C02: 2.630" x 1.340" Intake Gaskets: C00: Fel-Pro 1216 (gaskets only) C01/C02: Fel-Pro 1218 (gaskets only) Valley Pan Gasket Sets: 361-400: Fel-Pro 1214 413-440: Fel-Pro 1215 Intake Valve Diameter: C00/C01: 2.190" (TFS-61600211) C02: 2.250" (TFS-61600213) Intake Valve Seat: Ductile iron (TFS-53400271) Exhaust Port Volume: C00: 74cc CNC Street Ported C01/C02: 74cc CNC Competition Ported Exhaust Port Location: Stock Exhaust Port Dimensions: 1.250" x 1.650" oval Exhaust Gaskets: Fel-Pro 1414 Exhaust Valve Diameter: 1.760" (TFS-61600212) Exhaust Valve Seat: Ductile iron (TFS-61600272) Valve Angles: 15° Valve Guide Material: Bronze alloy (intake TFS-51600251, exhaust TFS-61600251) Valve Seals: Viton® fl uoroelastomer canister (TFS-30400454) Valve Seat Angles: 45° x multi-angle Valve Spring Pocket Diameter: 1.615" Valve Spring I.D. Locators: 1.550" x .060" (TFS-21400440) Valve Spring Retainers: 7° x 1.550" o.d. chromoly steel (TFS-31400424) 10° x 1.550" o.d. chromoly steel (TFS-41400423) 10° x 1.550" o.d. titanium (TFS-214T0520) 10° x 1.560" o.d. titanium (TFS-214T0525) Valve Stem Locks: 7° machined steel (TFS-51400444) 10° machined steel (TFS-52400444) Valve Springs, Standard: 1.460" o.d. dual spring with damper (TFS-16893-16) 120 lbs. @ 1.900" installed height 394 lbs. @ 1.175" open 390 lbs. per inch rate .680" max. valve lift Valve Springs, Option 1: 1.545" o.d. dual spring with damper (TFS-16094-16) 154 lbs. @1.950" installed hieght 453 lbs. @ 1.250 open 427 lbs. per inch rate .680" max. valve lift Valve Springs, Option 2: 1.560" o.d. dual spring (TFS-16318-16) 240 lbs. @ 2.000" installed height 600 lbs. @ 1.280" open 500 lbs. per inch rate .700" max. valve lift Rocker Arm Studs: 3/8" (TFS-61600613) Rocker Arms: Harland Sharp S70015KE (1.5 ratio) Harland Sharp S70016KE (1.6 ratio) Minimum Bore Diameter: 4.320" Cylinder Head Bolts: TFS-92025 ARP 145-3609 Cylinder Head Studs: TFS-61604304 Head Gaskets: Fel-Pro 1009 Head Locating Dowels: Mr. Gasket 4375 Pushrod Length: Longer than stock may be required Spark Plugs: Autolite 3924 NOTE: Work with stock pistons, roller rocker arms, and headers. Viton® is a registered trademark of DuPont Performance Elastomers. What makes Trick Flow’s PowerPort heads for big block Mopar so great? For starters, they’re made from A356-T61 aluminum, so they weigh much less than cast iron heads. Then there’s the relocated rocker shaft oil holes that allowed Trick Flow engineers to optimize the shape of the runners to increase fl ow velocity and add much needed strength to the shaft bosses. Other vital improvements include clearance for 3/8" pushrods, ductile iron valve seats, bronze alloy valve guides, and multi-angle valve seats. PowerPort heads for big block Mopar come in three fl avors: The PowerPort 240 heads are for mild-to-moderate performance applications using regular intake manifolds and feature CNC Street Ported intake runners with a standard resolution surface fi nish. The PowerPort 270 and 295 heads feature larger, raised Max Wedge-style intake runners for increased airfl ow and horsepower potential for extreme engine builds and serious racers. The runners have our high-resolution CNC Competition Ported surface fi nish that guarantees balanced fl ow for maximum power potential. Trick Flow designed the PowerPort heads to use all factory-style big block Mopar pistons, roller rocker arms, and headers. Cylinder heads are available fully assembled or as bare castings. Sold individually. PowerPort 240 Heads, CNC Street Ported Runners, Assembled TFS-61617801-C00 1.460" dual valve springs, 240cc intake runners TFS-61617802-C00 1.550" dual valve springs, 240cc intake runners TFS-6161T783-C00 1.550" dual valve springs and titanium retainers, 240cc intake runners TFS-6161T784-C00 1.560" dual valve springs and titanium retainers, 240cc intake runners PowerPort 270 Heads, CNC Competition Ported Runners, Assembled TFS-61617801-C01 1.460" dual valve springs, 270cc intake runners TFS-61617802-C01 1.550" dual valve springs, 270cc intake runners TFS-6161T783-C01 1.550" dual valve springs and titanium retainers, 270cc intake runners TFS-6161T784-C01 1.560" dual valve springs and titanium retainers, 270cc intake runners PowerPort 295 Head, CNC Competition Ported Runners, Assembled TFS-6161T784-C02 1.560" dual valve springs and titanium retainers, 295cc intake runners Airfl ow Results PowerPort Dyno Results PowerPort TFS-6161T784-C02
