Thread: 1979 Cadillac 425 torque specs..
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01-18-2019 08:37 PM #1
1979 Cadillac 425 torque specs..
Can someone get their motor repair manual out & give the torque specs for the heads & intake for a 79 Cadillac 425 engine?? My book is at home 8hrs away && I can't seem to find them online...thanks..joeDonate Blood,Plasma,Platelets & sign your DONORS CARD & SAVE a LIFE
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01-19-2019 12:28 AM #2
as per https://www.cad500parts.com/catalog/page4.htm
Stock Rods with Stock Bolts: 40 Ft-Lbs
Stock Rods with ARP Bolts: 50 Ft-Lbs (with ARP thread lube)
Aftermarket Rods with ARP Cap Screws: 65 Ft-Lbs (with ARP thread lube)
Aftermarket Rods with ARP 2000 Cap Screws: 75 Ft-Lbs (with ARP thread lube)
Main Bolts: 90 Ft-Lbs
ARP Main Studs (with ARP thread lube): Head Bolts: 115 Ft-Lbs
ARP Head Studs (with ARP thread lube): Intake: 30 Ft-Lbs
Exhaust: 35 Ft-Lbs
Cam Bolts: 25 Ft-Lbs
Rockers: 55 Ft-Lbs
Valve Covers: 10 Ft-Lbs
Flex Plate: 50 Ft-Lbs"Where the people fear the government you have tyranny. Where the government fears the people you have liberty." John Basil Barnhil
Thanks Bill, It seems to be working better already. Nolan
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