Lsx intake bolt torque spec
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Team Owner
Joined: Oct 2004
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From: altered state
St. Jude Donor '05
Lsx intake bolt torque spec
Was looking up online and says
1st pass 44 in lbs
2nd pass 89 in lbs
Conversion for in lbs to ft lbs is to divide in. by ft lbs
So say 89 ddivided by 12 = 7.4ft lbs???
Can this be right?
How can a manifold seal with that?
If so I just overtorqued mine REAL good
no in lbs on mine went by feel guessing somewhere in the 15-25 tops?
1st pass 44 in lbs
2nd pass 89 in lbs
Conversion for in lbs to ft lbs is to divide in. by ft lbs
So say 89 ddivided by 12 = 7.4ft lbs???
Can this be right?
How can a manifold seal with that?
If so I just overtorqued mine REAL good
no in lbs on mine went by feel guessing somewhere in the 15-25 tops?
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Joined: Oct 2010
Posts: 71
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From: Jonesboro, AR
Luckily I had one of the 3/8" torque wrenchs when building the Vette engine. But before I bought it I would take a 1/4" ratchet like a 3" long pencil looking one and torque it with it just by feel, the smaller tool you use the more easily you can tell torque. But like you I probably overtorqued it a little but never seen any ill effects. The factory spec seems sort of light, but we should never question the all knowing engineers.
Thread Starter
Team Owner
Joined: Oct 2004
Posts: 81,241
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From: altered state
St. Jude Donor '05
Couldnt find my little adapter wanted to do the same as you using the 1/4 in for initial. Guess if it was that overdone I would have cracked it.
Sprayed brakecleen aroudn all the ports when it was running didnt change anything and idles glass smooth so hoping it stays that way.
Guess if it were to leak its easy enough to lift the intake and slide another set under.
Directions what directions?
Sprayed brakecleen aroudn all the ports when it was running didnt change anything and idles glass smooth so hoping it stays that way.
Guess if it were to leak its easy enough to lift the intake and slide another set under.
Directions what directions?
Advanced
Joined: Oct 2010
Posts: 71
Likes: 0
From: Jonesboro, AR
Couldnt find my little adapter wanted to do the same as you using the 1/4 in for initial. Guess if it was that overdone I would have cracked it.
Sprayed brakecleen aroudn all the ports when it was running didnt change anything and idles glass smooth so hoping it stays that way.
Guess if it were to leak its easy enough to lift the intake and slide another set under.
Directions what directions?
Sprayed brakecleen aroudn all the ports when it was running didnt change anything and idles glass smooth so hoping it stays that way.
Guess if it were to leak its easy enough to lift the intake and slide another set under.
Directions what directions?
Team Owner
Joined: Mar 1999
Posts: 22,025
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From: At the beach in little Rhody
The gaskets are fairly soft. Based on my installation method for the FAST it appears the torque is intended to make the intake contact the heads and hold a preload. There really isn't any heavy torque required to seal the runners with this type of sealing material, not like the small block manifold.
Good excuse to buy an lb-in wrench.
Good excuse to buy an lb-in wrench.
Thread Starter
Team Owner
Joined: Oct 2004
Posts: 81,241
Likes: 3,063
From: altered state
St. Jude Donor '05
Sounds like it .
After doing a lot of googling on these sounds like the learning curve on these sbc starts all over again feel like a no0b
WHOLE lotta differences between all the LSx stuff wow
After doing a lot of googling on these sounds like the learning curve on these sbc starts all over again feel like a no0b
WHOLE lotta differences between all the LSx stuff wow
