Stock Elem Crankshafts??

[impstocker]

OK, why would you need a forged crank in a 305? I would imagine the RPM level would not need a forged unit? Some people are surprised that I used a real 396 block for my 396/325 as opposed to a sleeved 454. Plus it is only a 2 bolt main. Yes I do have steel crank in it, Motor has been up to 7300, but loses power over 6400 so I don't need to go there.Made over 100 passes on that motor. Is that the same deal with those 305's ?

Remember the sreet, musclecar car show days "I have a 4 bolt main block too"

Could I dare to say sometimes we can over engineer something when it does not need it.
My buddy has run Comp for years, and yea, 10,100 RPMs big difference from a Stocker motor. Checking Valve springs after every pass, tear the motor down during week, ect.

Will Lamprecht I/SA in progess 396/325

[nolongerracing]

Wait a week or so... there will be a couple of 3.480 stroke cast cranks (1 Scat and 1 Eagle) added to the approved list.

[GregP]

Originally Posted by impstocker

OK, why would you need a forged crank in a 305? I would imagine the RPM level would not need a forged unit? Some people are surprised that I used a real 396 block for my 396/325 as opposed to a sleeved 454. Plus it is only a 2 bolt main. Yes I do have steel crank in it, Motor has been up to 7300, but loses power over 6400 so I don't need to go there.Made over 100 passes on that motor. Is that the same deal with those 305's ?

Remember the sreet, musclecar car show days "I have a 4 bolt main block too"

Could I dare to say sometimes we can over engineer something when it does not need it.
My buddy has run Comp for years, and yea, 10,100 RPMs big difference from a Stocker motor. Checking Valve springs after every pass, tear the motor down during week, ect.

Will Lamprecht I/SA in progess 396/325

Not really sure it is a absolutly needed item but I hate to destroy a engine by cutting corners. I am sure it would hold up but I had just rather not chance it.

[GregP]

Originally Posted by nolongerracing

Wait a week or so... there will be a couple of 3.480 stroke cast cranks (1 Scat and 1 Eagle) added to the approved list.

What about forged, they are plenty of cast out there..

[nolongerracing]

400 HP, 7000 RPM, why would you put a heavier forged crank in a 305 stocker. Waste your money where you want to. I've seen many 350 SuperStock engines run a 30 year old cast crank 600 HP and 8500 RPM.

[Greg Reimer 7376]

I remember the aftermath of a 350 stocker motor that broke a crank,several rods, the windage tray and the pan when the cast crank broke.I also worked with a guy who was rebuilding the good 427 in his boat,but while that engine was down, he put a cast crank stock rod 402 in it with the big roller cam,heads,pan and the tunnel ram from the big motor, and went out. While hot dogging it, it blew up,and the next week at work he brought in a bag.In it were two mangled rods, one crank pin,and part of a piston. It broke on both ends of the same crank pin, and the pin and rods went through the pan and necessitated a fiberglass repair on the hull to fix a leak. I'm scared of cast cranks,but some people use them without incident. Good luck,I guess.

[James Perrone]

if it didn't come with a steel crank you can not use one.. good luck with that

[Dwight Southerland]

Originally Posted by James Perrone

if it didn't come with a steel crank you can not use one.. good luck with that

James, why do you say that? I see no ruling that states that, and there are lots of instances of engines that were not produced with forged or cast cranks running either.

[Alan Roehrich]

Originally Posted by nolongerracing

400 HP, 7000 RPM, why would you put a heavier forged crank in a 305 stocker. Waste your money where you want to. I've seen many 350 SuperStock engines run a 30 year old cast crank 600 HP and 8500 RPM.

The flip side of that question would be "why hunt a 30 year old junk yard piece, or more likely 4-5 to get a good one, then spend $500+ on prepping a $20 30 year old junk yard part?" He could simply order a new crankshaft, with the stroke and index already correct, and never have to hunt an old junk yard part or worry about it again.

[Greg Reimer 7376]

Originally Posted by Alan Roehrich

The flip side of that question would be "why hunt a 30 year old junk yard piece, or more likely 4-5 to get a good one, then spend $500+ on prepping a $20 30 year old junk yard part?" He could simply order a new crankshaft, with the stroke and index already correct, and never have to hunt an old junk yard part or worry about it again.

I think that about most concisely sums it up.