LS-B18A1 Torque Specs

• The B18A1 engine was used on the Acura Integra from 1990 to 1994. The engine had a cylinder head bolt torque of 22.61 foot-pounds, a main bolt torque of 56 foot-pounds, and a rod bolt torque of 30 foot-pounds.
  
  

LS-B18B1

• The B18B1 engine was used on the Acura Integra from 1994 to 2001. It had a cylinder head bolt torque of 22.61 foot-pounds, a main bolt torque of 22.68 foot-pounds, and a rod bolts torque of 15.24 foot-pounds.
  
  

VTEC-B18C1

• The B18C1 was used on the Type R Acura Integra from 1994 to 2000. The engine had a cylinder head bolt torque of 22.6 foot-pounds and a rod torque of 15.33 foot-pounds. The first and fifth main bolts had 56 foot-pounds of torque, while the second, third, and fourth bolts had 49 foot-pounds.
  
  

VTEC-B16A3

• The B16A3 engine was used on the Honda Civic from 1995 to 2000. The main bolts had a torque of 18.68 foot-pounds, while the rod bolts had a main torque of 23 foot-pounds. The first step of the cylinder head bolts had 22 foot-pounds of torque; the second step had 62 foot-pounds.
  
  

VTEC-B20A3

• The B20A3 engine was used on the Honda Prelude from 1990 to 1991. The engine had a cylinder head bolt torque of 22.49 foot-pounds, a main torque of 49 foot-pounds and a rod bolt torque of 23 foot-pounds.
  
  

VTEC-B20B4

• The B20B4 engine was used on the Honda CRV engine from 1997 to 1998. It had main bolt torque of 49 foot-pounds and a rod torque of 23 foot-pounds. The cylinder head bolts had a torque of 22 foot-pounds in the first step and 63 foot-pounds in the second step. The end cylinder head bolt had 46 foot-pounds of torque with oil.