Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

General Engine Data




GENERAL ENGINE DATA
Engine Type In-Line-6
Displacement 4.2L (256 cu. in.)
RPO LL8
VIN "S"
Bore 93 mm (3.66 in.)
Stroke 102 mm (4.02 in.)
Compression Ratio 10:1
Engine Compression Test 1482 KPa (215 psi)
Firing Order 1-5-3-6-2-4
Spark Plug Gap 1.07 mm (0.042 in.)