Silly Engine Lift Plate Question

[Butch Harley]

SCARED!!!!!!!!!! six pack manifold maybe if I use all 12 bolt holes

 

[JC Boatguy]

I use them all the time. The max tensile strength on a grade 8 5/16"-18 bolt is 7850lb times the stress area in in^2 is 7850*0.0524= 411.34 lbs.
Approximate a 800lb motor /4 = 200lbs per bolt. You are only at half of the allowable load on each bolt and honestly, most motors are less than 600lb.
I ain't skeert, even with aluminum manifolds...

And, when bolts are used in a clamping load situation the breakaway strength is much higher!

 

[kiwigtx]

And, when bolts are used in a clamping load situation the breakaway strength is much higher!

But the numbers involved would be lower if you guys used Metric.

....and then the fight started....

 

[pnora]

But the numbers involved would be lower if you guys used Metric.

....and then the fight started....

 

[69Bee]

But the numbers involved would be lower if you guys used Metric.

....and then the fight started....

...Any one of you "Suck Holes" wanna come up here and knock me off...

and

...Sgt, does this mean we're done for the day...

2 AWSOME lines!!

 

[padam]

...Any one of you "Suck Holes" wanna come up here and knock me off...

and

...Sgt, does this mean we're done for the day...

2 AWSOME lines!!

Sgt Hulka!

 

[69Bee]

Sgt Hulka!

The "Big Toe"!!