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ENGINES
First Mate Engines
Head Casting Part Liters CID Description HP Cyls Numbers No.
4.3L
262
VORTEC head. Screw In Studs. Heart Shaped Combustion Chambers.
175 & 205
V-6
772, 140
H6010
4.3L
262
Intake Ports Have Notch In Top Of Intake Port. Screw In Studs. Round Push Rod Holes.
175 & 205
V-6
181, 209, 064
H6011
4.3L
262
Intake Ports Have Notch In Top Of Intake Port. Screw In Studs. Round Push Rod Holes. Has Detonation Sensor Hole Above Water Temp Hole.
175 & 205
V-6
064, 181, 209
H6012
4.3L
262
VORTEC head. Roller Rocker Arms. No exhaust cross over. Heart shaped combustion chamber.
200 & 230
V-6
113
H6014
5.0L
305
7 Bolt Exhaust. Early Style. Valve Covers Bolt Around Perimeter. 1.720 Intake Valve.
200 & 230
V-8
513, 450, 416
H6015A
5.0L
305
Heavy Casting. 6 Bolt Exhaust. Early Style. Valve Covers Bolt Around Perimeter.
200 & 230
V-8
434, 741
H6015
5.0L
305
1.840 Intake Valves. 7 Bolt Exhaust. 3/8 Inch Temp Sender Hole.
200 & 230
V-8
450, 416
H6016A
5.0L
305
1.840 Intake Valves. 7 Bolt Exhaust. 1/2 Inch Temp Sender Hole.
200 & 230
V-8
450, 416
H6016
5.0L
305
Tall Valve Cover Rail. Valve Cover Bolts Down Center. Non VORTEC head. Slotted Push Rod Holes.
200 & 230
V-8
187
H6017A
5.0L
305
Tall Valve Cover Rail. Valve Cover Bolts Down Center. Non VORTEC head. Round Push Rod Holes. Must Use Rail Rockers.
200 & 230
V-8
081
H6017
5.0L
305
VORTEC head. Has 8 bolt intake.
200 & 230
V-8
520, 059
H6018
5.7L
350
1.9375 Intake Valves. Gasket Plug. Valve Covers Bolts Around Perimeter.
260
V-8
H6021
5.7L
350
1.9375 Intake Valves. Taper Plug. Valve Covers Bolts Around Perimeter. Non Roto.
260
V-8
H6022A
5.7L
350
1.9375 Intake Valves. Taper Plug. Valve Covers Bolts Around Perimeter. With Roto.
260
V-8
H6022
5.7L
350
1.9375 Intake Valves. 6 Bolt Exhaust. Valve Covers Bolts Around Perimeter.
260
V-8
882
H6024
5.7L
350
Tall Valve Cover Rail. Non VORTEC head . Valve Cover Bolts Down Center. 1.940 Intake Valves. Tapered intake ports.
260
V-8
H6023A
5.7L
350
Tall Valve Cover Rail. Non VORTEC head. Valve cover bolts down center of head. 1.940 Intake. Square intake ports.
260
V-8
083, 193, 217
H6023
5.7L
350
VORTEC Head. Heart shaped chambers. Rocker bolts in center of head. Has 4 intake bolts per side.
260
V-8
906, 062
H6013
7.4L
454
Taper Plug. Small Oval Intake Port Head. With Roto’s. With Heat Crossover.
330
V-8
045, 360, 039, 416
H6031
7.4L
454
Taper Plug. Large Oval Intake Ports. With Roto’s. With Heat Crossover
330
V-8
781, 049, 186
H6032
7.4L
454
Gen V head. Standard Marine Replacement. Oval Intake, with Heat Crossover
330
V-8
156, 932
H6033
7.4L
454
Heart shaped combustion chamber. 7/16 inch Mounting holes in heads. L-29, Oval Intake, No Heat Crossover
330
V-8
279
H6036
7.5L
455
Standard Marine Replacement
325
V-8
191, 409, 100, 783
H6035
8.2L
502
Early Style 502 Standard Marine Replacement. Large square intake ports. R and R Only.
360
V-8
088, 188
H6037
8.1L
496
VORTEC. Standard Replacement.
375 & 420
V-8
162
H4608 (driver) H4609 (passenger)
MERCRUISER
3.7L
224
Standard Marine Replacement. Has outlet on end of head.
170 & 190
L-4
E6TE-DA, E8TE-DA, D3VE-A2A
H6051
FIRSTMATE MARINE CYLINDER HEAD WARRANTY
FirstMate Marine warrants its re-manufactured cylinder heads to be free from defects in materials used or workmanship performed by FirstMate Marine for a period of 90 days. Warranty covers replacement of the defective parts and gaskets. Labor will be paid when the original installation was performed by a bona fide marine repair facility. When labor is allowed, it will be paid at the shop’s regular rate, not to exceed $45 per hour X the Motor Manual flat rate time. Labor not to exceed 11/2 times price of head. Warranty does not cover oil, oil filter, incidental or consequential damages resulting from loss of time or use of boat. Repairs or replacements do not extend original warranty.
PRIOR AUTHORIZATION IS REQUIRED BEFORE WARRANTY WORK IS BEGUN. CALL YOUR DISTRIBUTOR OR FIRSTMATE MARINE.
FIRST MATE