Technical Details
Material: A356 Primary Ingot Aluminum
Valve Angle: 24 Degree (rolled two degrees)
Intake Ports: 355/365/375cc
Intake Port Design – Rectangle Port, CNC Machined
Intake Port Flow: 365cc = 415cfm @.800, 375cc = 450cfm@.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 375cc 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
Product Accessory Details
Intake Manifold: Pro-Filer Single Plane
Intake Gasket : Special Pro-Filer Cometic PN IR250060KF
Valve Cover Gasket: Stock BBC
Exhaust Gasket: Stock BBC
Head Gasket: 4.540 bore Cometic C5433 or Fel-Pro 1017
Head Gasket: 4.600 bore Cometic C5434 or Fel-Pro 1057
Valve Covers – Standard BBC Bolt Pattern Pro-Filer PN 191
Rockers – Standard BBC
Pistons: Wiseco 24 Degree Aftermarket
Valve Springs – Up to 1.670″ Dia
Valve Spring Installed Height: 2.000″
Head Bolts – ARP
Head Studs – ARP
Product Recommendations for Optimum Performance
Intake Manifold: Pro-Filer Sniper Tunnel Ram
Pistons: Wiseco
Nitrous Systems: Nitrous Express or NOS
Bore Size: Optimized Bore of 4.50 and larger
Rocker Systems: Shaft Mount (Jesel / T&D) both available
Valves: Victory Valves – Titanium Valves
Ships UPS or Fed Ex
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