Topic: torque thermostat housing
in Forum: C3 Cooling and Heating Systems
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does anyone know what the torque specs are for the thermostat housing onto an aluminium !!(edelbrock) intake manifold .
thank you
art-corvette
thank you
art-corvette
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Frederick, MD - USA
Joined: 9/8/2003
Posts: 3398
Vette(s): 1969 convertible L71 427/435 4-speed black interior
According to Edelbrock's web site (they have installation instructions on-line now), torque them to 25 ft/lbs. You can check it yourself to double-check me, just to be sure.
thanks.. i didn't think myself about checking their website..or maybe i was a little lazy 
but now i will check it out
hmm....just been checking it out... they only mention the manifold bolts on cylinder head and not the thermostat housing bolt.. wonder if they have the same specs
thankz again
art-corvette
art-corvette 38848.546412037

but now i will check it out

hmm....just been checking it out... they only mention the manifold bolts on cylinder head and not the thermostat housing bolt.. wonder if they have the same specs
thankz again
art-corvette
The thermostat bolts are 5/16 shank. Bolts to the head are 3/8 shank. The thermostat bolts would be closer to 15 ft lbs.
Former Member
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Frederick, MD - USA
Joined: 9/8/2003
Posts: 3398
Vette(s): 1969 convertible L71 427/435 4-speed black interior
Ken is right...I misread what you wanted. The torque figure I gave from the Edelbrock web site was for the head bolts. Hope you got Ken's correction before you installed the housing.
hey Chips.. great tip..works perfect.. and that half turn back can even be done with just my fingers
gunslinger i haven't torqued the bolts yet . since i was still in doubt about the right torque i have emailed edelbrock last nite if they could tell me the right specs
anyway it is a good thing i asked on here about the torque..i would have expected it much higher than the 15 ft/lbs kstyer recommends.
art-corvette
in Forum: C3 Cooling and Heating Systems
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