305 crankshaft
 

Do I have to use the stock 305 crank? Can I use a steel crank from a 350? I see there is no aftermarket cranks on the accepted list. Any input would be great thanks

Re: 305 crankshaft
 

You don't need a steel crank or the weight that goes with it. use a stock 305 crank or if you want to get trick about it, use a 267 crank.

Re: 305 crankshaft
 

Stock 305 cranks hold up ok?

Re: 305 crankshaft
 

Listen to Billy.

Re: 305 crankshaft
 

Whats a 267 ? What cars did they come in

Re: 305 crankshaft
 

I think the 267 came in the Monza.

Re: 305 crankshaft
 

Pretty sure that early Monzas came with 262s, not 267. The only 267s I ever seen came in 80-81 Malibus and Monte Carlos.

Re: 305 crankshaft
 

Is the 267 crank lighter than a 305? Will it withstand some rpms? This info is super helpful. Thanks guys

Re: 305 crankshaft
 

To quote a very wise man, Listen to Billy.

Re: 305 crankshaft
 

I kinda remember one in a Camaro Berlinetta. '80-'81ish?

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

Re: 305 crankshaft
 

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

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.

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 .

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?

Re: 305 crankshaft
 

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.

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

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!

Re: 305 crankshaft
 

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