REINFORCEMENT HEAD BOLTS

The high-boost and high-compression engine tends to occur distortion between the cylinder head and the cylinder block as a junction part of combustion chamber.

JUN is saled the stregnthed head bolts for high-tuning engine becase of the severe situation.

  • HEAD BOLT
  • HEAD BOLT
JUN REINFORCEMENT HEAD BOLTS
Engine Spec(unit:mm) Part # MSRP(yen) Remarks
Form Bolt Size
NISSAN
A12 StudStock 1027M-N006JPY25,300
L4 StudStock 1027M-N007JPY25,300
L6 StudStock 1027M-N008JPY26,400
CA18DE(T) StudStock 1027M-N009JPY25,300
SR20DE(T) StudStock 1027M-N011JPY28,600
SR20DE(T)
Standard
 BoltStock 1027M-N003discontinuedS13/S14/S15
SR20DE(T)
Racing
 BoltM12x1.5 1027M-N004JPY30,800S13/S14/S15
Bolt hole expansion processing is necessary.
SR20DET/RNN14 StudStock 1027M-N005JPY37,400 / for the Pulsar
RB20DE(T)/RB25DE(T) StudStock 1027M-N010JPY35,200
RB26DETT StudStock 1027M-N002JPY42,900 
VG30DE(TT) StudStock 1027M-N015JPY52,800
VQ35DE StudStock 1027M-N012JPY42,900
VR38DETT StudStock 1027M-N013JPY154,000
TOYOTA
4A-G(16V) StudStock 1027M-T001JPY28,600
3S-G(T)E StudStock 1027M-T002JPY28,600
2ZZ-GE StudStock 1027M-T006JPY39,600
7M-GTE StudStock 1027M-T003JPY35,200
BoltStock 1027M-T004JPY30,800
2JZ-G(T)E StudStock 1027M-T005JPY42,900
HONDA
B16A StudStock 1027M-H001JPY28,600
B16B/B18C StudStock 1027M-H002JPY28,600
H22A StudStock 1027M-H003JPY30,800
K20A StudStock 1027M-H004JPY28,600
F20C StudStock 1027M-H005JPY30,800
MITSUBISHI
4G63 BoltStock 1027M-M005JPY26,400
4G63 BoltStock 1027M-M001discontinued 
4B11 StudStock 1027M-M004JPY28,600
6G72 StudStock 1027M-M002JPY93,500
SUBARU
EJ20/EJ25 StudStock 1027M-F002JPY70,400
EJ20/EJ25 BoltStock 1027M-F001discontinued 
MAZDA
B6/BP StudStock 1027M-Z001JPY28,600
  • ‡1 Manufactured by ARP Inc.
Fastener Assembly Lubricant
Name Capacity Part # MSRP(yen) Remarks
ARP Ultra-Torque 15ml (0.5oz.) 9502M-101JPY550 Same lubricant as contained a bolt set
50ml (1.69oz.) 9502M-102JPY1,650 Tube type (with cap)
  • ‡2 This lubricant is for ARP bolts.