305 crankshaft - Page 2

Mike Taylor 3601 · 01-07-2016, 09:53 AM

267,305.350 all are same crank,just different balance,all same just 305 has more weight took out of counterweight and 267 has more removed,some have more and deeper holes,some have couple v shaped notches in counterweights and deeper drilled holes.
Mike Taylor 3601

Signman · 01-07-2016, 10:32 AM

There are cranks on the accepted list be sure to call the manufacturer to be sure rod journals are not drilled.

REGGIE WINKLES · 01-07-2016, 11:40 AM

I prefer the 70 350 LT-1 steel crank for my 305 stick application. Never any failures,crank has been in use over 20 years.

Mark Yacavone · 01-07-2016, 01:41 PM

For those who haven't been following along with this build:

Guys, this is a 2bbl, automatic application.

Mr Money, If you want specific answers here, then you need to ask specific questions .

jmoneyfoot · 01-07-2016, 02:28 PM

This is a 145hp 305 2bbl not a ton of power I just am wondering if a stock 305 crank will hold up or if I should use a steel 350 crank. Seems like everyone is trying to get the lightest crank possible. Im wanting to build a very compeditive R/SA but are finding out racers neet me dont like to talk about there combinations. Will a stock 305 crank go 7500+rpm?

Mike Pearson · 01-07-2016, 02:49 PM

Quote:

Originally Posted by jmoneyfoot

This is a 145hp 305 2bbl not a ton of power I just am wondering if a stock 305 crank will hold up or if I should use a steel 350 crank. Seems like everyone is trying to get the lightest crank possible. Im wanting to build a very compeditive R/SA but are finding out racers neet me dont like to talk about there combinations. Will a stock 305 crank go 7500+rpm?

It will hold up well. I have run cast cranks in super stock engines that rev to 8500 rpm with no failures. You might also think about using the factory 305 rods. They are lighter than the aftermarket rods and would be plenty strong for the application you are talking about. Resize and some new high strength bolts.

kansas stocker · 01-07-2016, 05:13 PM

I'll be more than a little shocked if your 305 2 barrel combination is a 7500+ package. If it is you need to be asking lots of lifter and spring questions.
Pete

Signman · 01-07-2016, 05:13 PM

Removing weight from the center of rotation is not as important as reducing weight of components at the outside of rotation and that stop and start. Look at ways to reduce friction and windage losses.

Always listen to Billy!

MR DERBY CITY · 01-07-2016, 07:27 PM

Quote:

Originally Posted by kansas stocker

I'll be more than a little shocked if your 305 2 barrel combination is a 7500+ package. If it is you need to be asking lots of lifter and spring questions.
Pete

X2 Mr. Kansas.....if it turns 7500 then it is BAD AZZ

01-07-2016, 09:53 AM	#11
Mike Taylor 3601 VIP Member Join Date: Oct 2008 Location: Somerset,Ky Posts: 1,371 Likes: 352 Liked 304 Times in 102 Posts	Re: 305 crankshaft 267,305.350 all are same crank,just different balance,all same just 305 has more weight took out of counterweight and 267 has more removed,some have more and deeper holes,some have couple v shaped notches in counterweights and deeper drilled holes. Mike Taylor 3601

01-07-2016, 10:32 AM	#12
Signman Senior Member Join Date: Oct 2003 Location: Lower Slower Delaware Posts: 535 Likes: 22 Liked 269 Times in 99 Posts	Re: 305 crankshaft There are cranks on the accepted list be sure to call the manufacturer to be sure rod journals are not drilled. __________________ Frank Ferrucci I/SA 1271 "Be Thankful for the Gifts You are Given"

01-07-2016, 11:40 AM	#13
REGGIE WINKLES Member Join Date: Jun 2007 Location: St. Augustine, Fla. Posts: 229 Likes: 569 Liked 39 Times in 9 Posts	Re: 305 crankshaft I prefer the 70 350 LT-1 steel crank for my 305 stick application. Never any failures,crank has been in use over 20 years. __________________ Reggie Winkles 2650/Stock

01-07-2016, 01:41 PM	#14
Mark Yacavone Veteran Member Join Date: Mar 2002 Location: Miles From Nowhere Posts: 7,815 Likes: 2,903 Liked 5,120 Times in 1,951 Posts	Re: 305 crankshaft For those who haven't been following along with this build: Guys, this is a 2bbl, automatic application. Mr Money, If you want specific answers here, then you need to ask specific questions . __________________ "We are lucky we don't get as much Government as we pay for." Will Rogers Last edited by Mark Yacavone; 01-07-2016 at 01:45 PM.

01-07-2016, 02:28 PM	#15
jmoneyfoot Junior Member Join Date: Dec 2015 Location: waconia mn Posts: 92 Likes: 21 Liked 9 Times in 5 Posts	Re: 305 crankshaft This is a 145hp 305 2bbl not a ton of power I just am wondering if a stock 305 crank will hold up or if I should use a steel 350 crank. Seems like everyone is trying to get the lightest crank possible. Im wanting to build a very compeditive R/SA but are finding out racers neet me dont like to talk about there combinations. Will a stock 305 crank go 7500+rpm?

01-07-2016, 05:13 PM	#17
kansas stocker Member Join Date: Oct 2002 Location: kansas Posts: 235 Likes: 498 Liked 249 Times in 48 Posts	Re: 305 crankshaft I'll be more than a little shocked if your 305 2 barrel combination is a 7500+ package. If it is you need to be asking lots of lifter and spring questions. Pete

01-07-2016, 05:13 PM	#18
Signman Senior Member Join Date: Oct 2003 Location: Lower Slower Delaware Posts: 535 Likes: 22 Liked 269 Times in 99 Posts	Re: 305 crankshaft Removing weight from the center of rotation is not as important as reducing weight of components at the outside of rotation and that stop and start. Look at ways to reduce friction and windage losses. Always listen to Billy! __________________ Frank Ferrucci I/SA 1271 "Be Thankful for the Gifts You are Given"