Rectangular port design promotes high intake velocity for killer torque output
Available in 365cc and 385cc intake port sizes
End pads drilled and tapped for accessories, standard stud girdles and rockers fit!
Accepts up to 1.740" Diameter Springs
Technical Details
Material: A356 Primary Ingot Aluminum Valve Angle: 24 Degree (rolled two degrees) Intake Ports: 365cc, 385cc Intake Port Design - Rectangle Port, CNC Machined Intake Port Flow: 365cc = 415cfm @.800, 385cc = 430cfm@.800 Combustion Chamber - 119cc, can be reduced to 105cc (.005 per cc flat milling, .007 per cc angle milling) Bore Spacing: Standard BBC 4.840 Exhaust Valve - 1.880" - 1.900 / +.100 long Intake Valve - 2.350" / +.350 long 385cc head, 2.300" for 365cc head Deck Thickness - Approx 1/2" deck for Nitrous and Blown applications Spark Plugs - Use Gasketed 3/4" Reach Plugs NGK R5671A-7 or colder Valve Guides: Bronze Alloy .502" OD Valve Train - Uses Stock or Most Aftermarket Rocker Systems (shaft mount recommended) Valve Seats - Ductile Steel Spring Retainers - Titanium Accessories - Heads drilled and taped for standard accessories (alternator)
Product Accessory Details
Intake Manifold:Pro-Filer Single Plane or Fabricated Sheet Metal Intake Gasket: Special Pro-Filer Cometic PN IR250060KF Valve Cover Gasket: Stock BBC Exhaust Gasket: Stock BBC Head Gasket: 4.54 bore Cometic C5433 or Fel-Pro 1017 Head Gasket: 4.60 bore Cometic C5434 or Fel-Pro 1057 Valve Covers - Standard BBC Bolt Pattern Pro-Filer PN 191 Rockers - Standard BBC or shaft rockers (T & D, Jesel) Pistons: Most 24 Degree Aftermarket Valve Springs - Up to 1.670" Dia Valve Spring Installed Height: Determined by Valve Height When Ordered Head Bolts - PN Information Pending Head Studs - PN Information Pending
Product Recommendations for Optimum Performance
Intake Manifold:Pro-Filer Sniper Single Plane Pistons: Wiseco Nitrous Systems: Nitrous Express or Wilson Manifolds Pro-Flow Bore Size: Optimized Bore of 4.50 and larger Rocker Systems: Stock or Shaft Mount (Jesel/T&D) both available from Pro-Filer Valves: Victory Valves - Stainless Steel
Part Numbers Note: Copper Seats available by special order add $100. Solid Castings (no water jacket) add $100. Victory Titanium Valves also available, call for details.
174-X-C36 Series BBC 24deg 365cc CNC Ported Cylinder Head
PN
Description
Price
174-X-C36-03
Ductile Steel Valve Seats & 11/32 Bronze Guides
$1100.00 ea
174-X-C36-04
Assembled with 11/32 Bronze Guides, 3 angle valve job, Steel Seats, Stainless Steel Valves (2.300/1.880), Ti Retainers, Double Roller Springs, 10 Degree Locks
$1650.00 ea
174-X-C38 Series BBC 24deg 385cc CNC Ported Cylinder Head
PN
Description
Price
174-X-C38-03
Valve Job with 11/32 Bronze Guides
$1100.00 ea
174-X-C38-04
Assembled with 11/32 Bronze Guides, 3 angle valve job, Steel Seats, Stainless Steel Valves (2.350/1.880), Ti Retainers, Double Roller Springs, 10 Degree Locks
$1650.00 ea
174 Series Cylinder Head Accessories
PN
Description
Price
IR250060KF
Cometic Single Intake Gasket for 174 Heads Qty 2 required for new installations (replaces PN 174-IG)
