(2) Fel-Pro P1003 S/B Chevy 265-400 Steel Ring Head Gaskets, 4.166 Inch Bore. (1) Fel-Pro 1204 S/B Chevy Intake Manifold Gaskets Set, 1.23x1.99 Inch. (1) Fel-Pro 1404 Small Block Chevy Square Port Header Gaskets Set.
(1) Fel-Pro 1604 Small Block Chevy Valve Cover Gaskets Set, 5/16 In Cork/Rubber. IMCA Approved Stock Replacement Cylinder Heads.
Dart IMCA Approved cast iron Small Block Chevy cylinder heads. Approved stock replacement heads for Hobby Stock. Begins with a Dart 10024360 Iron Eagle S/S 165 casting. Engraved and serial-numbered to conform to IMCA rules.Precision cast ports and chambers, they have outstanding air flow. Optimized valve sizes for maximum performance within IMCA rules. 1.94"/1.50" standard length stainless steel valves. Hobby Stock heads feature Speedway Motors high performance valve springs.
Approved for IMCA Hobby Stock as of 4/27/2020. Fel-Pro P1003 Cylinder Head Gaskets, 4.166 Inch Bore. Multi-layer steel gaskets offer current leading-edge technology and provide a long-term, leakproof seal called Perma Torque MLS. Compressed volume: 9.1 cc. 4.166" bore gaskets can be used on 400 race engines with up to 4.155" max bore with minimal chamfer.Reduced wrenching hex head that eliminates the need for valve train removal to facilitate cylinder head retorquing. All High Performance Series bolts are 180,000 psi (which is 15% stronger than Grade 8). Kits come complete with hardened parallel-ground washers. Fel-Pro 1204 Intake Manifold Gaskets. Fel-Pro Blue Stripe premium quality intake manifold gaskets for Small Block Chevy (SBC). 1.23" x 1.99". NOTE: Not for use on 1982-85 engines with factory fuel injection, embossed permatorque/blue stock (blocked heat cross over).
Fel-Pro 1404 Square Port Header Gaskets. Fel-Pro Blue Stripe premium quality Small Block Chevy exhaust gaskets for headers.Square Port (stock or small race). 1.50" x 1.50". Fel-Pro 1604 Valve Cover Gaskets.
Fel-Pro Blue Stripe premium quality Small Block Chevy (SBC) valve cover gaskets. Cork-Lam 5/16 Cork Rubber With Steel Core. One bolt head drilled for NASCAR wire seal. Intake Valve Dia: 1.940. Intake Port Dim: 1.100" W x 1.925" H.
Exhaust Port Dim: 1.340" W x 1.300" H. Exh Port Location: Stock location & bolt pattern. 0065 = 1cc Flat Mill. Pistons: Most 23° aftermarket pistons.
Push Rod length: Stock (Stock length = 7.800) Must measure. Push Rod Guide: Stock type, integral. Retainers: Steel 1.250 = (7°). Rocker Arm stud: Use screw-in stud w/integral nut. Spring Cups: N/A, Use hardened shim or locator.
Spring Pockets: Cut for 1.250 OD. Valve Length: STD = 4.890. Valve Guides: Integral cast into head. Valve Guide Spacing: 1.890 moved. Valve Seals: Cut for umbrella seals.Valve Seats: Exh = Powdered Metal. Valve Seat dim: Exh - 1.650" x 1.280" x.
Int = 32° - 45° - 60° - 70°- 80°. Exh = 37° - 45° - radius.
Head Bolts = 70 ft/lb (w/ oil). Rocker Studs = 55 ft/lb.
Block Use: Any SBC, Iron or Aluminum. Related Items / Suggested Parts. Dart IMCA Hobby Stock Budget SBC Cylinder Heads/Gaskets/Bolts Kit.Dart IMCA Hobby Stock Budget SBC Top End Engine Kit, Heads/Intake. Dart IMCA Hobby Stock Premium SBC Top End Engine Kit, Heads/Intake. Speedway Motors is America's Oldest Speed Shop® and has been a trusted source for specialty rodding and racing products and friendly expert advice for more than 71 years.