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Flathead V8 "Big Bore" Head Gaskets
Graphite/Kevlar®

Made from graphite/Kevlar® composite material with steel fire rings.Superior sealing, strength and temperature rating compared to copper gaskets. Unlike Copper, will not corrode aluminum.

511B - 59A
521LB - 8BA left
521RB - 8BA right

Maximum bore diameter:	3.375"
Temperature rating:	1400°
Uncompressed thickness:	.060"
Compressed thickness:	.050"

HEAD GASKET SUFFIX CODES

BS	Beaded Steel	(Steel Shim)
C	Copper	Copper outside, asbestos inside
S	Steel	Steel outside, asbestos inside
SA	Composite	Fibre gasket material outside with perforated steel core inside
X, Y, Z		These letters at the end of a Full Set part number have nothing to do with the head gasket styel. They represent variations or supersessions from other sets.

No sealant is required, but may be used if desired. Always re-torque.

Full rebuilding sets (RS) can be purchased less than head gaskets. When ordering, replace "RS" with "RSU".
Head Sets have been discontinued.

Make/Engine	Cyl	Year	Full Set	Price
Nash "600" & Rambler-Statesman	6	41-49 50-52	RS 557SA	$ 149.00
American Motors 184-196 "L"-Head Cast Iron	6	53-65	RS 574SAZ	$ 89.00
American Motors 196 OHV Cast Iron	6	56-65	RS 527SAZ	$ 79.00
American Motors 320-352 Packard engine	V8	55-56	RS 719SA	$ 189.00
American Motors 250-287-327	V8	57-66	RS 654BS	$ 98.00
Buick 248 "40-50" "small series"	8	34-53	RS 518SZ	$ 149.00
Buick 263 "40-50" w/ Dynaflow Note: 263 Dynaflow can use RS 518SZ (sandwich head gasket) or RS 576BS (shin head gasket original style).	8	34-53	RS 576BS	$ 149.00
Buick 320 "60-70-80-90" "big series" Note:Timing cover seal '42-49 not included in full set, order separately - part no. 3494X	8	36-52	RS 519C	$ 169.00
Buick 264-322	V8	53-56	RS 567SA	$ 119.00
Buick 364-400-401-425	V8	57-66	RS 597S	$ 89.00
Buick 215 Special Skylark	V8	61-63	RS 633SA	$ 89.00
Buick 198 Special 4000-4100	V6	62-63	RS 659BS	$ 98.00
Buick 225	V6	64-67	RS 660BS	$ 89.00
Buick 3000-340	V8	64-67	RS 662SA	$ 89.00
Cadillac, La Salle 346 Flathead	V8	37-48	RS 524C	$ 169.00
Cadillac 331	V8	49-55	RS 568SA	$ 129.00
Cadillac 365-390	V8	56-62	RS 578SAY	$ 119.00
Cadillac 390-429	V8	63-67	RS 663SA	$ 139.00
Cadillac 472-500	V8	68-76	RS 676S	$ 139.00
Chevrolet Master "490"	4	16-28	RS 500C	$ 84.60
Chevrolet Master 194	6	29-31	RS 501C	$ 169.00
Chevrolet Master 194	6	32	RS 501CW	$ 145.00
Chevrolet Master 207	6	33	RS 501CX	$ 145.00
Chevrolet Master 207	6	34	RS 728S	$ 145.00
Chevrolet Master 207	6	35-36	RS 504S	$ 125.70
Chevrolet Master 207 Note: with 45° valve seats	6	E35	RS 728S	$ 125.70
Chevrolet 182 standard	6	33	RS 727C	$ 125.70
Chevrolet 182 standard	6	34	RS 729C	$ 145.00
Chevrolet, Truck 216	6	37-53	RS 502SZ	$ 89.50
Chevrolet, GMC 235	6	50-52	RS 534C OR "SA"	$ 89.50
Chevrolet chev, GMC Truck 235	6	53-62 53-63	RS 543CY OR "SA"	$ 89.50
Chev. GMC Truck 261 Truck	6	54-58	RS 545SA	$ 89.50
Chev, GMC Truck 261 Truck	6	59-62	RS 639SA	$ 89.50
Chevrolet, Truck GMC Truck 265	V8	55-56	RS 561SA	$ 89.50
Chev. Truck, GMC 322 Buick engine	V8	56-59	RS 567SA	$ 108.00
Chevrolet Chevrolet Truck 348	V8	58-61 58-65	RS 506BS	$ 149.70
Chevrolet Chevrolet Truck 409	V8	61-56 62-65	RS 638SAZ	$ 149.70
Chevrolet 153 Chevy ll	4	62-70	RS 636BSY	$ 64.00
Plymouth	4	29-32	RS 741 C	$ 189.00
Chrysler Products 201-218, Chrysler (30-33), Dodge (30-32), DeSoto (1929-33)	6	30-33	RS 733S	$ 149.00
Chrysler/DeSoto 224-242	6	34-36	RS 735C	$ 191.75
Chrysler/DeSoto 274-282-299-323 Chrysler, DeSoto	8	31-42	RS 725C	$ 189.60
Chrysler/DeSoto 323 Chrysler, DeSoto	8	46-50	RS 731C OR "S"	$ 165.80
Dodge/Plymouth 201 Dodge (1933), Plymouth (1933-34)	6	33-34	RS 514SA	$ 89.50
Dodge/Plymouth 201-218 Dodge, Dodge Truck-230 also (34-50), Plymouth (35-48)	6	34-48	RS 503C	$ 129.50
Dodge/Plymouth 218-230 Dodge, Plymouth, Dodge Truck (51-60) US Models	6	49-59	RS 523C	$ 129.50
Chrysler/DeSoto Chrysler, DeSoto 218-241-251-265 Dodge Truck 218-228-237-241-251-265 (1937-60) US passenger models only	6	37-54	RS 510C	$ 139.50
Canadian Chrysler, Chrysler (1951-54), Dodge Truck (1951-68) Head gasket is same as 510C, except has extra bump (bypass hole).	6	51-68	RS 738C	$ 108.00
Dodge Hemi 241	V8	53-54	RS 628S	$ 198.50
Dodge /Plymouth 241-260-270 (Poly)	V8	55	RS 629S	$ 135.75
Dodge Hemi 270	V8	55	RS 629SX	$ 198.50
Dodge/Ply/DeSoto 270-315-325 (Poly)	V8	56-58	RS 580BS	$ 146.00
Dodge Hemi 315-325	V8	56-58	RS 580BSX	$ 198.50
DeSoto Hemi 276-291-330-341-345	V8	52-57	RS 734SA	$ 198.50
Dodge/Plymouth 277-301-303-313-318-326	V8	56-66	RS 579S	$ 119.50
Chrysler 301-331-354 (Poly)	V8	55-58	RS 736SA	$ 198.50
Chrysler Hemi 331	V8	51-54	RS 565SA	$ 198.50
Chrysler Hemi 331	V8	55	RS 718SA	$ 198.50
Chrysler Hemi 354-392	V8	56-58	RS 585SA	$ 198.50
Ford A, AA	4	28-31	RS 509C OR "S"	$ 54.00
Ford B, BB	4	32-34	RS 573C OR "SA"	$ 74.00
Ford, Truck 226 G-Series	6	41-47E	RS 531SA	$ 165.70
Ford, Truck 226 H-Series	6	47L-51	RS 528S	$ 118.00
Ford Truck U.S. 254, Canadian (1948-53)	6	49-53	RS 739S	$ 144.50
Ford, Truck, Edsel 215-223-262 OHV	6	52-64	RS 632SA	$ 78.50
Ford, Truck 22165-85 HP (21 stud)	V8	32-38	RS 507SA	$ 104.50
Ford 136 60 HP (17 Stud)	V8	37-40	RS 520S	$ 132.50
Ford, Ford Truck 221 85-90 HP (24 Stud) 3.062 bore, D-style head gasket	V8	38-42 38-47	RS 505SA OR "C"	$ 89.50
Ford 239 Flathead (24 Stud) 3.187 bore-59a	V8	45-48	RS 521C OR "SA"	$ 112.50
Ford Truck

Flathead V8 "Big Bore" Head Gaskets

Graphite/Kevlar®

Made from graphite/Kevlar® composite material with steel fire rings.Superior sealing, strength and temperature rating compared to copper gaskets. Unlike Copper, will not corrode aluminum.

511B - 59A

521LB - 8BA left

521RB - 8BA right

Maximum bore diameter:

3.375"

Temperature rating:

1400°

Uncompressed thickness:

.060"

Compressed thickness:

.050"

BS

Beaded Steel

(Steel Shim)

C

Copper

Copper outside, asbestos inside

S

Steel

Steel outside, asbestos inside

SA

Composite

Fibre gasket material outside with perforated steel core inside

X, Y, Z

These letters at the end of a Full Set part number have nothing to do with the head gasket styel. They represent variations or supersessions from other sets.