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Trick Flow Kenny Duttweiler 23 Degree Heads, Assembled. TFS-30400003.
Less than 1000miles on them. Pocket ported and bowl blended. 2.02/1.6 valves, guidplates, screw in studs, dual springs good to .600lift. They are ready to be bolted right on.
A356-T61 aluminum
Combustion Chamber Volume:
62cc
Intake Port Volume:
195cc
Intake Port Dimensions:
1.28" x 2.09"
Intake Port Location:
Stock
Intake Valve Diameter:
2.02"
Intake Valve Angle:
23°
Intake Valve Seat:
Tungsten alloy
Intake Valve Length:
4.96"
Intake Valve Stem Diameter:
11/32"
Exhaust Port Volume:
72cc
Exhaust Port Dimensions:
1.35" x 1.5"
Exhaust Port Location:
Stock
Exhaust Valve Diameter:
1.60"
Exhaust Valve Angle:
23°
Exhaust Valve Seat:
Tungsten alloy
Exhaust Valve Length:
4.98"
Exhaust Valve Stem Diameter:
11/32"
Valve Guide Material:
Bronze alloy, intake
Bronze alloy, exhaust
Valve Guide Length:
2.0" intake, 2.25" exhaust
Valve Guide Clearance:
.0012" intake, .0016" exhaust
Valve Guide Spacing:
1.910"
Valve Seals:
Viton, .500" i.d. x .700" o.d. x 11/32" stem
Valve Seat Angles:
37° x 45° x 52°
Valve Spring Pocket Diameter:
1.615" for valve springs with spring cups
1.500" for two center valve springs using locators
Valve Spring Cups:
1.48" x 1.61" x .060"
Valve Spring I.D. Locators:
Used on two center valve springs for bolt clearance
Valve Spring Retainers:
7° x 1.25" o.d. chromemoly steel
7° x 1.437"-1.50" o.d. chromemoly steel
Valve Stem Locks:
7° stamped steel
7° + .050" machined steel
Valve Springs:
1.460" o.d. double with damper
125 lbs. @ 1.780" installed height
376 lbs. @ 1.180" open
420 lbs. per inch rate
.600" maximum valve lift
Pushrod Length:
Refer to instructions for recommendations
Guideplates:
For use with 5/16" pushrods
Rocker Arm Studs:
ARP 3/8"-24NF x 7/16"-14NC x 1.895"
Rocker Arm Type:
Stud mount roller rocker arms recommended
Weight:
22 lbs. each, bare
$775 plus shipping. PM me your town and zip for shipping quotes. I will allow pick up. Youngstown,Ohio-near the PA border