| BMF 310 Specifications |
| Materials |
| Casting | A356-A Virgin Grade, Heat Treated to T-6 |
| Valve Guides | Manganese Bronze Alloy |
| Valve Seats | Ductile Iron |
|
| Combustion Chamber |
| Volume | 119cc |
|
|
| Intake |
| Port Volume | 310cc |
| Valve Diameter | 2.300" |
| Valve Length | 5.494" |
| Valve Stem Diameter | 11/32" |
| Valve Stem Seal Diameter | .531 |
|
| Exhaust |
| Port Volume | 150cc |
| Valve Diameter | 1.880" |
| Valve Length | 5.422" |
| Valve Stem Diameter | 11/32" |
| Valve Stem Seal Diameter | .531 |
|
| Valve Train |
| Stud Size | 7/16" |
| Guide Plates | Big Block Chevrolet |
| Retainers | Titanium 10 Degree |
| Valve Locks | 10 Degree Square Groove |
| Pushrods | 3/8" Heat Treated, Must Check Length |
| Springs | 1.640'' O.D. 250lbs Installed Height, Max Lift .880" |
| Spring Cups | 1.740" O.D. - .060" Thick |
|
| Accessories |
| Head Bolts | Exhaust upper row, 5 bolts per head longer use ARP #070-135-36 |
| Complete ARP kit #070-135-3702 |
| Head Studs | ARP #070-235-4102 |
| Spark Plug | 14mm 3/4'' reach 5/8'' Hex with washer |
| Stud Girdle | Requires BMF Stud Girdle |
|
| Rocker Arms | Big Block Chevrolet |
|
| Gaskets |
| Intake | Fel-Pro # 375-1275* or Mr. Gasket #720-5817* Cometic: IR-207SP3060KF .060 Thick* Cometic: IR-207SP3125KF .125 Thick* *not for port matching |
| Exhaust | Fel-Pro # 375-1412* or Mr. Gasket #720-5912* *not for port matching |
| Head | Fel-Pro #375-1017-1 or equivalent for MarkIV Fel-Pro #375-17048 or equivalent for Gen V, Gen VI Block |
|
| Torque Specifications |
| Rocker Studs | 45 ft/lbs |
| Manifold Bolts | 35 ft/lbs |
| Heads Bolts/Studs | See Bolt/Stud Manufacturers recommendations |