Has anyone busted their stock crank?

RE: Has anyone busted their stock crank?

From what I've read in the past, the stock 6 bolt is good to about 500 hp. The 8 bolt is good to at least 750, I believe.

Edit: That may be at the flywheel, not rear wheel.
 
RE: Has anyone busted their stock crank?

The rods and pistons will die before the 6 bolt crank will. I have never heard of anyone breaking the 6 bolt crank. Noone.
There is a 6 bolt in the white car supercharged car my brother has. We intned on running 500rwhp until next spring and then put a 76 GTS and run 600-700rwhp. I am more worried about the rods than the crank.
 
RE: Has anyone busted their stock crank?

Which engines had the 6 bolt crank, and which engines had the 8 bolt?
 
RE: Has anyone busted their stock crank?

cobra forged cranks have 8 bolts to hold the flywheel, our cast cranks only have 6. correct me if i'm wrong.

all of them use 6 main cap bolts... four in the conventional locations and two cross bolts.
 
RE: Has anyone busted their stock crank?

I would eventually like to do a 5.0L big bore. 10.5-11 to 1 compression (forged rods and pistons), then maybe a 100-150 shot of N20 on top of that. I am contemplating using my stock crank. Do you think this would be safe?
 
RE: Has anyone busted their stock crank?

[div class="dcquote"][strong]Quote[/strong]
I would eventually like to do a 5.0L big bore. 10.5-11 to 1 compression (forged rods and pistons), then maybe a 100-150 shot of N20 on top of that. I am contemplating using my stock crank. Do you think this would be safe?
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you're gonna go through the added expense to put a BB 5.0 in, and the juice, but wont spend the extra money to get a better bump-stick? Even if the consensus was that of your stock crank being "ok"...why risk it?

have you ever had the oil pan off a 4.6 DOHC and looked at the bottom end? pretty skimpy.

I wouldnt risk it.
[a
Club 16 President/Founder
94 Black/Black M8
97 Toreador red/Lt. graphite LSC M8
V.P. GGM8​
 
RE: Has anyone busted their stock crank?

[div class="dcquote"][strong]Quote[/strong]
[div class="dcquote"][strong]Quote[/strong] but wont spend the extra money to get a better bump-stick?
[a Club 16 President/Founder94 Black/Black M897 Toreador red/Lt. graphite LSC M8V.P. GGM8
[/div]



Bumpstick? Iv'e only heard of Camshafts refered to as "bump sticks". ;)
 
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