Torque specs of motor mounts to block of a 350 chevy motor?
SOURCE: Looking for the torque specs for 1998 chevy astro van?
1998 chevy astro 4.3 v6 torque specs include :
* foot pounds *
balance shaft (if equiped) gear bolt = step 1 = 15 ft.lbs. step2 = additional 35 degrees.
camshaft sprocket bolt = 18 ft. lbs.
connecting rod cap = step 1 = 20 ft. lbs. step 2 = additional 70 degrees.
crankshaft damper bolt = 74 ft. lbs.
crankshaft oil deflectorbolt/nut = 27 ft.lbs.
cylinder head bolts = step 1 = 15 ft. lbs. step 2 = additional 73 degrees. (tighten in sequence)
exhaust manifold bolts = step 1 = 11 ft. lbs. step 2 = 22 ft. lbs.
flywheel bolt = 74 ft. lbs.
main bearing cap bolts = step 1 = 15 ft. lbs. step 2 = additional 73 degrees.
oil filter adapter bolt = 15 ft. lbs.
oil pan bolt/nut = 18 ft. lbs.
oil pump bolt = 66 ft. lbs.
rocker arm with press in studs = 18 ft. lbs.
rocker arm with screw in studs = 19 ft. lbs.
valve lifter retainer bolt = 12 ft. lbs.
water pump bolt = 33 ft. lbs.
* inch pounds *
balance shaft retaining plate bolt = 106 in. lbs.
camshaft retainer plate bolt = 106 in. lbs.
front cover bolt = 106 in. lbs.
intake manifold upper = step 1 = 44 in. lbs. step 2 = 88 in. lbs.
intake manifold lower = step 1 = 27 in. lbs. step 2 = 106 in. lbs. step 3 = 133 in. lbs. ** (tighten bolts in sequence)
thanks for your vote !
SOURCE: I need the torque specs and sequence on a 1998 chevy 350 vortec
Vortecs are a little different that old school small blocks, grab a Haynes or Chiltons, the cross patterns and specs are simply diagramed. Vortec, as any really, start with 25# then 45# and then final torque which I believe is around 70-75# but to be sure verify with the manual. AutoZones, Murry's, Adavance auto all carry the books, Cheap insurance.
Dan
SOURCE: need torque specs for 83 chevy 350 cylinder head bolts.
Hello there
Torque
Specs
These specs may not be correct for your
application.
Verify your engine specs with a service manual
for your year and model.
always
torque
bolts in three equal increments
Bolts or Parts
Lube or Sealer
Torque to:
7/16 Main Caps (2 bolt)
Engine Oil
70 ft-lbs.
7/16 Inner Main Caps (4 bolt)
Engine Oil
70 ft-lbs.
7/16 Outer Main Caps (4 bolt)
Engine Oil
65 ft-lbs.
3/8 Outer Main Caps (4 bolt)
Engine Oil
40 ft-lbs.
Warning!!! If you
are using ARP bolts, you MUST use
their specs. Click Here!
3/8 Connecting Rod Bolt
Engine Oil
45 ft-lbs.
11/32 Connecting Rod Bolt
Engine Oil
45 ft-lbs.
Cylinder
Heads
Engine
oil
(blind hole)
Sealer
(water
jacket)
65 ft-lbs.
Rocker Studs (screw-in)
Engine Oil
50 ft-lbs.
Oil Pump
Engine Oil
65 ft-lbs.
Oil Pan
Engine Oil
12 ft-lbs.
Cam Sprocket (upper gear)
Thread Locker
20 ft-lbs.
Timing Cover
Engine Oil
6 ft-lbs.
Intake
Manifold
(Cast Iron
Heads)
Non- Hardening Sealer
30 ft-lbs.
Valve Cover
Engine Oil
3 ft-lbs.
Exhaust Manifold
Anti-Seize Lubricant
25 ft-lbs.
Spark Plugs
No Lube or Sealer
20 ft-lbs.
Flexplate
(Automatic)
Flywheel
(Clutch)
Thread Locker
60 ft-lbs.
Clutch Pressure Plate
Thread Locker
35 ft-lbs.
Centerbolt
(Harmonic
Damper)
Engine Oil
60 ft-lbs.
Bellhousing
(Transmission
to Block)
Engine Oil
25 ft-lbs.
Head
Bolt Tightening Sequence
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