Trick Flow Twisted Wedge® Race 195 cylinder heads are perfect for big bore engine builds, superchargers and turbos, high compression E85, big shot nitrous oxide, and other mega-power combinations.
The heads have the same features of the Twisted Wedge 185 series heads—Twisted Wedge combustion chambers, altered intake valve positions, OE PI-style intake inlets, CNC-profiled combustion chambers, 3/4" thick decks, patented replaceable cam bearing journals*, and 3/4"-reach spark plugs—but have fully CNC Competition Ported runners with a premium high resolution surface finish for ultimate performance. Larger, stronger valves and race-duty valvetrain components give these heads 8,000-plus rpm capability.
Cylinder Head Style: Assembled
CNC-Machined Ports: Yes
Port Finish Type: CNC Competition Ported
Emissions Status: Non-emissions
Intake Port Volume: 195cc
Combustion Chamber Volume: 44cc CNC-profiled
Minimum Bore Diameter: 3.572 in.
Material: A356-T61 aluminum
Combustion Chamber Shape: Twisted Wedge®
Intake Valve Angle: 9 degree
Intake Port Location: Stock
Intake Port Shape: OE Ford PI
Intake Port Dimensions: 1.700 in. x 2.000 in.
Intake Valve Diameter: 1.900 in.
Intake Valve Seat: Ductile iron
Exhaust Valve Angle: 9 degree
Exhaust Port Volume: 95cc
Exhaust Port Location: Stock
Exhaust Port Shape: D-port
Exhaust Port Dimensions: 1.250 in. x 1.470 in.
Exhaust Valve Diameter: 1.470 in.
Exhaust Valve Seat: Ductile iron
Valve Guide Material: Bronze alloy
Valve Seals: Viton® fluoroelastomer
Valve Seat Angles: 45 degree x multi-angle
Valve Spring Pocket Diameter: 1.180 in.
Valve Spring Cups: 1.100 in.
Valve Spring Retainers: Chromoly steel
Valve Stem Locks: 7 degree
Valve Springs Included: Yes
Valve Springs: 1.100 in. o.d. dual spring
Valve Spring Seat Load: 150 lbs. @ 1.500 in. installed height
Valve Spring Open Load: 290 lbs. @ .900 in. open
Valve Spring Rate: 233 lbs. per inch rate
Valve Spring Maximum Valve Lift: .650 in.
Valve Cover Style: Perimeter bolt
Spark Plug Style: Angle
Accessory Bolt Holes Drilled/Tapped: No
O-Ring Grooves: No
Heat Crossovers: No
Steam Holes: No
Quantity: Sold individually.
Notes: Accepts all Romeo and Windsor valve covers plus most OE Ford front covers with 8 mm head bolt holes. Must use head gaskets with a minimum bore diameter of 3.700 in.