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Username Post: Manifold bolts        (Topic#362933)
Falcon65 
Silver Supporting Member
Posts: 5
Falcon65
Reg: 10-15-20
10-15-20 07:47 PM - Post#2805558    

Just purchased a 94 Chevy 3500HD with a 454 N series motor this thing was a real basket case I had to have it delivered by rollback the guy said everything was in the bed. I wound up short blocking the motor it was rusted so bad, got heads reworked no biggy. replaced 4 valves. been a bear getting pushrods finally went to Chevy dealer and looked at their books 2 different sizes?? Got that resolved now the intake I can't find a diagram anywhere as to where the studs go and normal bolts any one have an idea? and finding another BB in my location is impossable. Thanks for any help



Edited by Falcon65 on 10-15-20 07:48 PM. Reason for edit: No reason given.

 


grumpyvette 
Senior Chevytalk Moderator -- Performance Subject Matter Expert --
Posts: 17545
grumpyvette
Age: 72
Loc: FLORIDA USA
Reg: 03-16-01
10-16-20 07:11 AM - Post#2805576    
    In response to Falcon65



http://garage.grumpysperformance.com/index.php?thr...

Fastener Type Torque Specs
Main Cap Bolt (396-427, 2-Bolt) 95 ft.-lbs.
Main Cap Bolt (396-454, 4-Bolt, Inner and Outer) 110 ft.-lbs.
3/8 in. Connecting Rod Bolt 50 ft.-lbs.
7/16 in. Connecting Rod Bolt 67-73 ft.-lbs.
Cylinder Head Bolts, Long 75 ft.-lbs.
Cylinder Head Bolts, Short 65-68 ft.-lbs.
Screw-In Rocker Arm Studs 50 ft.-lbs.
Intake Manifold Bolts (Cast Iron Head) 25 ft.-lbs.
Oil Pump Bolt 65 ft.-lbs.
Cam Sprocket Bolts 20 ft.-lbs.
Harmonic Damper Bolt 85 ft.-lbs.
Flywheel/Flexplate Bolts 60 ft.-lbs.
Pressure Plate Bolts 35 ft.-lbs.
Bellhousing Bolts 25 ft.-lbs.
Exhaust Manifold Bolts 20 ft.-lbs.

IF YOU CAN,T SMOKE THE TIRES AT WILL,FROM A 60 MPH ROLLING START YOUR ENGINE NEEDS MORE WORK!!"!
IF YOU CAN , YOU NEED BETTER TIRES AND YOUR SUSPENSION NEEDS MORE WORK!!


Edited by grumpyvette on 10-16-20 11:54 AM. Reason for edit: No reason given.

 
steve65 
"5th Year" Gold Supporting Member
Posts: 922
steve65
Age: 62
Loc: New Westminster BC
Reg: 09-25-13
10-16-20 10:28 AM - Post#2805594    
    In response to Falcon65

Are you talking about intake or exhaust manifolds? I've got a 454 in pieces in my kitchen and don't recall any studs on the intake manifold. There are a couple(?) on the exhaust side.
Pic of one head attached, the other is already stripped down. There is one just below the temp sender on this one. But....not entirely sure that's the hole it came out of.
Steve

Attachment: stud.jpeg (74.93 KB) 1 View(s)




Steve Duncan
66 Impala 2dr Coupe
Not sure of color yet
work in progress



 
scrambldcj8 
"2nd Year" Silver Supporting Member
Posts: 2592
scrambldcj8
Loc: Belchertown, MA
Reg: 04-06-03
10-16-20 10:38 AM - Post#2805596    
    In response to Falcon65

  • Falcon65 Said:
….. been a bear getting pushrods finally went to Chevy dealer and looked at their books 2 different sizes??



Yes, push rods are different lengths on a BBC. IIRC length is 8.280" intake and 9.250" exhaust.



 
Falcon65 
Silver Supporting Member
Posts: 5
Falcon65
Reg: 10-15-20
10-17-20 06:06 PM - Post#2805660    
    In response to steve65

we must have different motors all most half of my intake manifold bolts are studs for brackets throttle linkage brackets even my thermostat has studs to mount a bracket for the wiring. I've almost figured it out I'm ashamed too say I saw one locally and followed him home, he was weirded out a little but when I explained he popped the hood. Thanks for the help anyway just wasted $50 bought a complete set of GM manuals on a 95 waste of time and money going to have to post another on different subject



 
wagonman100 
Site Ambassador
Posts: 14756

Loc: Baltimore, MD
Reg: 11-27-04
10-17-20 06:40 PM - Post#2805663    
    In response to Falcon65

When it was said there are no studs for the intake manifold, he meant that all of the fasteners that hold the intake to the heads are bolts, no studs. You wouldn’t be able to install the intake if there were studs there. There certainly were studs used elsewhere in the intake.

Jay
Friends don’t let friends drive Fords.

1999 Silverado Z71 4X4 extra-cab short bed
1983 Malibu Fauxmad - tubbed
1978 El Camino Kustomized
1972 Monte Carlo
1957 210 handyman wagon
1957 Nomad sport wagon
1957 Cameo Carrier


 
someotherguy 
Senior Moderator
Posts: 29276
someotherguy
Loc: Texas
Reg: 08-01-03
10-18-20 11:07 AM - Post#2805694    
    In response to wagonman100

Maybe just a confusion of terms. Not regular studs, but double-ended bolts, like are used on most of the TBI & Vortec engines on the intake manifold. There are varying sizes and positions due to what he said - throttle and accessory brackets, stabilizer rods, etc.

Richard

06 Silverado ISS / 06 Silverado SS / 06 300C SRT8


 
IgnitionMan 
Valued Contributor
Posts: 3810

Reg: 04-15-05
10-18-20 11:19 AM - Post#2805696    
    In response to steve65

I have actually done intake manifold to head studs, not that hard.

Install manifold with stock bolts, and get it torqued. Come back after 24 hours, and ONE BOLT AT A TIME, remove a bolt.

Install a fully threaded Allen set screw, long enough to fit correctly down the head threads, add flat washer, and nut. torque, done.

Every time I did this, I did it for looks, NOT for practicality. It is time consuming, and makes servicing a pain, but, it sure does make 'em take a closer, second look.



 
Falcon65 
Silver Supporting Member
Posts: 5
Falcon65
Reg: 10-15-20
10-18-20 11:46 AM - Post#2805701    
    In response to someotherguy

thanks I guess my old terms are out of date. I was referring to the bolt with an attached nut midways that allows you to mount a bracket on top and lock down with another nut



 
TAT_2 
Member #26 "19th Year" Silver Supporting Member
Posts: 36722
TAT_2
Age: 67
Loc: "UNDER THE BOARDWALK"
Reg: 10-29-00
10-18-20 03:41 PM - Post#2805716    
    In response to Falcon65



09 PONTIAC- VIBE
08 PONTIAC- G6
93 VETTE - 40TH ANIV- RUBY RED- LT1/6SPD/RAG TOP
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PREVIOUS VETTE'S 58,68,70,76,78,85,90












 
IgnitionMan 
Valued Contributor
Posts: 3810

Reg: 04-15-05
10-18-20 04:40 PM - Post#2805719    
    In response to Falcon65

Falcon, those double studs work good as well.



 


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