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
239 Flathead - 8CM

V8

49-53
48-53

RS 521C OR "SA"

 $        100.00

Mercury Ford Canadian Truck 255 Flathead - 8CM

V8

49-53
49-54

RS 532C OR "SA"

 $          98.50

Ford Truck
279-302-317-332-(333 Canadian 1964)

V8

52-63E

RS 570BSZ

 $        128.50

Ford Passenger
239 OHV

V8

E54

RS 563BS

 $        130.00

Ford Truck
239 OHV

V8

L54-55

RS 572SAX

 $        102.50

Mercury Ford Truck
256 OHV

V8

54
54-55

RS 564SA

 $        102.50

Ford, Merc, Edsel Ford Truck
272-292

V8

55-62
56-64

RS 572SA

 $        102.50

Ford, Merc, Edsel
312

V8

56-57

RS 572SAY

 $        102.50

Ford, Mercury
221 OHV

V8

62-63

RS 631SA

 $          87.50

Ford, Mercury
260-289-302 (except Mustang Boss, Cougar Elimiator 69-71)

V8

62-76

RS 644SA

 $          88.50

Ford, Merc, Edsel
332-352-361-390-406-410-427-428, FE

V8

58-76

RS 658SAZ

 $          98.50

GMC
216 eng. GMC 235 eng. 216-235

6

37-53
46-49

RS 502SZ

 $          68.50

GMC
228-236-248-270

6

39-62

RS 595S

 $          72.50

GMC
302

6

51-59

RS 589S

 $          72.50

GMC
222-233 Pontiac engine

6

35-38

RS 517S

 $        165.50

GMC
230 Oldsmobile engine

6

37-39

RS 516C

 $        165.50

Hudson
170-212 "Splasher 6"

6

37-47

RS 556S

 $        134.50

Hudson
254 "L-Head"

8

37-52

RS 724S

 $        200.75

Hudson
232-262 L6 Narrow Block, "Big 6"

6

48-50

RS 720S

 $        200.75

Hudson
232-262 All (except Hornet) "Big 6"

6

51-54

RS 721S

 $        189.50

Hudson
308 Hornet "Bid Six"

6

51-54

RS 722S

 $        200.75

Hudson
308 Hornet "Bid Six"

6

55-56

RS 723S

 $        235.50

Hudson
320-352 Packard engine

V8

55-56

RS 719SA

 $        175.50

Lincoln
267-292-305

V12

36-48

RS 707SA

 $        134.50

Lincoln, Ford Truck
308-337 Flathead

V8

49-51

RS 726SA

 $        235.50

Lincoln
317 OHV

V8

52-54

RS 570BSZ

 $        128.50

Lincoln
341

V8

55

RS 737BS

 $        126.50

Lincoln, Mercury
368

V8

56-57

RS 596BS

 $        114.50

Lincoln, Merc, Ford
383-430-462 (1968-6 bolt rocker cover)

V8

58-68

RS 618SAZ

 $        128.50

Oldsmobile
215-219-229-238

6

37-48

RS 516C

 $        180.50

Oldsmobile
257

6

49-50

RS 530C

 $        180.50

Oldsmobile
257

8

37-48

RS 560S

 $        151.00

Oldsmobile
303

V8

49-53

RS 566SA

 $        136.50

Oldsmobile
GMC Truck 325

V8

54-56
55-56

RS 566SAX

 $        160.00

Oldsmobile
(371), GMC Truck (370), 370-371, and J-3

V8

57-58
57-59

RS 512SA

 $        160.00

Oldsmobile
371-395

V8

59-60

RS 512SA

 $        130.50

Oldsmobile
395

V8

61-64

RS 642SAZ

 $        120.50

Oldsmobile
225

V6

64-65

RS 660BS

 $          86.00

Oldsmobile
215 f85

V8

61-63

RS 646SA

 $          86.00

Packard
245

6

37-50

RS 715S

 $        150.70

Packard
282

8

35-47

RS 716S

 $        150.70

Packard
288-327 (1948-54); 356 Super 8 (1940-47)

8

40-45

RS 717SZ

 $        164.50

Packard
320-352-374

V8

55-56

RS 719SA

 $        158.25

Pontiac
222-239

6

35-54

RS 517C

 $        171.00

Pontiac
249

8

33-49

RS 525C

 $        171.00

Pontiac
268

8

50-54

RS 558C

 $        165.50

Pontiac, GMC
287-316

V8

55-56

RS 583S

 $        127.50

Pontiac, GMC
347

V8

57

RS 583SX

 $        108.00

Pontiac
370-389

V8

58-60

RS 617SA

 $          87.50

Pontiac
195 Tempest

4

61-63

RS 617SA-1

 $          88.50

Pontiac
326-389-421

V8

61-63

RS 617SAZ

 $        106.50

Pontiac
215 Tempest

V8

61-62

RS 633SA

 $          66.50

Pontiac
230-250 OHV

6

66-69

RS 682SA

 $        120.00

Studebaker
218-226-246 Commander, Truck (38-60)

6

36-50

RS 529C

 $        142.50

Studebaker
164-169 Champion, Truck

6

39-54

RS 522S

 $        118.50

Studebaker
164-169 Champion, Lark, Truck

6

55-60

RS 522SX

 $        118.50

Studebaker
170 Lark OHV

6

61-64

RS 634S

 $        126.50

Studebaker
232

V8

51-54

RS 559C

 $        148.50

Studebaker
224-259-289 R1, R2

V8

55-64

RS 598SA

 $        121.25

Studebaker
352 Packard engine

V8

56

RS 719SA

 $        148.25

Willys Jeep,
HJ 148-161 L-Head
(Henry-j 161 '51-54)

6

48-55

RS 553S

 CALL

Willys Jeep
161 F-Head

6

52-56

RS 554SA

 CALL

*Not included in Full Set; must be ordered separately.