Description
AFR – Airflow Research 2110-1 – AFR Big Block Chevy 345cc Rectangle Port Magnum Aluminum Cylinder Heads Details
100% CNC Combustion Chamber Package
Big Block Chevy 345cc Rectangle Port 24° Magnum Basic Package Components Big Block Chevy 345cc Rectangle Port 24° Magnum Head Specifications
| 100% CNC Ported Combustion Chambers | |
| Bowl Blended Exhaust Ports | |
| Bowl Blended Intake Ports | |
| Competition 5-Angle Valve Job | |
| Intake Valve, 2.300” x 5.500” Overall Length | |
| Exhaust Valve, 1.880” x 5.442” Overall Length | |
| 1.625” OD PAC Racing Solid Roller Valve Spring, 275 lbs. on seat, .850” maximum lift, max RPM 7400-7600 | |
| 10º Manley 4140 Chrome Moly Retainers | |
| 10º Valve Locks | |
| 7/16” Rocker Studs | |
| Adjustable 3/8” Guide Plates | |
| Viton Valve Seals | |
| Hardened Spring Seat | |
| Intake Valve Seats | |
| Exhaust Valve Seats | |
| Bronze Valve Guides | |
| Head Torque w/Moly Lube | 75 Ft. Lbs. |
| Rocker Stud Torque | 55 Ft. Lbs. |
| Intake Port Gasket, 1.775” x 2.500” with 1/2” radius | Fel-Pro 1275 – DO NOT PORT MATCH Intake Manifold to Fel-Pro Gasket. |
| Exhaust Port Gasket | AFR 6858 |
| Head Gasket Mark IV | 4.540” Bore, Fel Pro 1017 AFR 6850 |
| Head Gasket Mark V – VI | Up to 4.500” Bore, Fel Pro 1047 |
| Head Gasket Mark V – VI | 4.500” to 4.600” Bore, Fel Pro 17049 |
| Head Bolts & Studs | Standard ARP |
| Head Bolt Washers | Manley Standard |
| Stud Girdle | AFR 6210 |
| Suggested Manifold | Edelbrock 2907 & 2927 or Brodix HV2000 & HV2001 |
| Spark Plug Starting Range | Champion C59C, Autolite 3932 |
| Combustion Chambers | 121cc Fully CNC’d |
| Intake Port Volume | 345cc Partially Ported |
| Exhaust Port Volume | N/A |
| Spring Pocket can be cut to 1.750, no deeper. | |
| Valve Spacing | Standard |
| Rocker Arms | Standard |
| Valve Angle | 24° / 4° Intake ; 15° / 4° Exhaust |
| Angle Mill, 104cc Maximum | .009” per cc |
| Flat Mill, As Cast 108cc, CNC 114cc Maximum | .006” per cc |
| NOTE: | Flat and Angle mills might require a .120” thick head gasket. |
