ROLLER ROCKER ARM

This part is no longer available.
ROLLER ROCKER ARM
M-6564-BS51
Instruction Sheet
Not Available
    PART NUMBER PACKAGE OF (16)PART NUMBER PACKAGE OF (2)APPLICATIONSDESCRIPTIONNOTES
    RATIOMOUNTINGVALVE TYPE
    M-6564-A351*M-6564-AS51*289/302/351W and Ford Racing aluminum cylinder heads M-6049-J3021.60:1StudInlineRequires 3/8" stud, push rod guide plates & hardened push rods. Cast iron ylinder heads require pedestal machining.
    M-6564-D351*M-6564-DS51*1.70:1StudInline
    M-6564-K351*N/A289/302/351 Ford Racing aluminum cylinder head
    M-6049-Z304
    1.60:1StudInlineRequires 7/16" stud, push rod guide plates & hardened push rods. Cast iron cylinder heads require pedestal machining.
    M-6564-B351*M-6564-BS51*(1)(3)302/351W — 1978 and later with production heads. Cast iron and aluminum GT-40 heads1.60:1Bolt OnInlineFor stock production cast iron cylinder heads with hydraulic non-adjustable valve train. Does not require guide plates, hardened push rods or pedestal machining. Includes pedestal inserts & bolts.
    M-6564-E351*(1)(3)M-6564-ES51*(1)1.70:1Bolt OnInline
    M-6564-A50*(1)(2)
    302/351W — 1978 and later with production heads. Cast iron and aluminum GT-40 heads1.70:1Bolt OnInlineSame as "Cobra" 5.0L Mustang. These rocker arms have beefy trunnions for extra long life. Die cast aluminum construction.
    M-6564-F351*N/AM-6049-N351/N352 "Sportsman" head.1.65:1StudInline7/16" stud mount intake rocker with .150" offset pushrod cup (pkg. of 16).
    M-6564-C351*M-6564-CS51*351C/351M/400
    1973 and later
    429/460 production
    cylinder heads.
    1.73:1Bolt OnCantedFor stock production canted valve cylinder heads with hydraulic non-adjustable valve train. Does not require guide plates, hardened push rods or pedestal machining. Includes pedestal inserts & bolts.
    M-6564-A460*M-6564-AS60*351C/351M/400
    302 BOSS/429/
    460,429 CJ/SCJ and Ford Racing
    high port aluminum cylinder heads.
    1.73:1StudCantedFor canted valve cylinder heads. Requires 7/16" stud, push rod guide plates, hardened push rods. Some cast iron cylinder heads require pedestal machining.
    NOTES:
    (1) The M-6564-B351 and -E351 bolt-on roller rocker arms will not clear the stamped rocker cover on standard 5.0L EFI engines. "Taller" valve covers, such as the production 5.0L EFI HO die-cast aluminum cover or Ford Racing chrome cover M-6582-D302, can be used if the baffle is modified in the RH cover. The M-6582-E302 polished aluminum valve cover will clear all rocker arms and stud girdles, but will not fit under the EFI manifold unless a 1" spacer M-9486-A53 is used between the upper and lower sections of the intake. M-6582-E302 will not fit 1994-95 Mustang or 1990-93 T-Bird.
    (2) Serviced individually from your Ford or Lincoln-Mercury dealer.
    (3) Rocker channels not included.
Part Type
Engine: Valves / Springs
Warranty Availability
Not Available
Package Dimensions
2.25" x 2" x 8"
Package Weight
1 lb(s)
UPC Code
756122656129
Country of Origin
United States