AFR - Airflow Research 190cc Eliminator Vortec Street Aluminum Cylinder Heads SB-Chevy Vortec
033-0912



Small Block Chevy 190cc Eliminator Vortec Basic Package Components | |
100% CNC Ported Combustion Chambers | |
100% CNC Ported Exhaust Ports | |
100% CNC Ported Intake Ports | |
Competition 5-Angle Valve Job | |
Intake Valve, 2.020'' x 4.903'' o.a.l. | |
Exhaust Valve, 1.600'' x 4.955'' o.a.l. | |
1.290'' OD Hydraulic Roller Dual Valve Spring, 135 lbs. on seat, .600'' maximum lift, max RPM 6300-6500 | |
7º Manley 4140 Chrome Moly Retainers | |
7º Valve Locks | |
3/8'' Rocker Studs | |
Adjustable 5/16'' Guide Plates | |
Viton Valve Seals | |
Hardened Spring Cups | |
Intake Valve Seats | |
Exhaust Valve Seats | |
Bronze Valve Guides | |
Small Block Chevy 190cc Eliminator Vortec Street Head Specifications | |
Head Torque w/Moly Lube | 65-70 Ft. Lbs. |
Rocker Stud Torque | 55 Ft. Lbs. |
Intake Port Gasket (GM Vortec) | Fel-Pro 375-1255 or 375-MS90131 - DO NOT PORT MATCH Intake Manifold to Fel-Pro Gasket. |
Exhaust Port Gasket | Fel Pro 375-1404 |
Head Gasket | 350ci Fel Pro 375-1003 400ci Fel Pro 375-1014 |
Head Bolts & Studs | Standard ARP |
Head Bolt Washers | Manley Standard |
Stud Girdle | Standard |
Suggested Manifold | GM Vortec or Edelbrock p/n 375-2116 or p/n 375-7116 |
Spark Plug Starting Range | AC FR3LS or 41629 |
Combustion Chambers | 65cc |
Spring Pocket can be cut to 1.625, no deeper. | |
Valve Spacing | Standard GM L98 |
Rocker Arms | Standard |
Valve Angle | 23° |
Angle Mill | .008'' per cc |
Flat Mill | .006'' per cc |
NOTE: | Flat and angle mills might require a .120'' thick head gasket. |
Specifications:
what size pushrod length is recommended to run on these heads with a lt4 hotcam with 1:52 roller rockers.
what size are the valve seals
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