AC 301 Bore? December 25, 2015 05:55AM
I am curious as to how many cubic inches you can bore out of the AC 301 diesel block?
Reply Quote

Re: AC 301 Bore? December 25, 2015 08:17AM
Easily 362 but there are 405ci out there running strong.
Reply Quote

Re: AC 301 Bore? December 25, 2015 11:56AM
Is that with turbo? Cause if so I am wondering how far it could go naturally aspirated.
Reply Quote

Re: AC 301 Bore? December 25, 2015 02:22PM
420 turbo
464 natural.
Reply Quote

Re: AC 301 Bore? December 25, 2015 03:11PM
500+ on gas
Reply Quote

Re: AC 301 Bore? April 01, 2016 05:04AM
So would it be possible to bore the 301 and use 426 pistons and sleeves in it?
Reply Quote

Re: AC 301 Bore? April 01, 2016 06:10AM
I don't know about 426 sleeves. I think the sleeve might be longer. The 426 is a 4.250 bore which is what I run. The JD 404 sleeve would be easier.
Reply Quote

Re: AC 301 Bore? December 26, 2015 12:14AM
Telling me 420-464 and 500+ is just with bore? No stroke at all out of a 301 diesel block?
Reply Quote

Re: AC 301 Bore? December 26, 2015 05:37AM
No
1/2 to 5/8 stroker.
4.4 bore is a safe limit.
Reply Quote

Re: AC 301 Bore? December 26, 2015 06:52AM
Have to stroke for 500+. Can make 405 for sure on just bore with heavy sleeves
Reply Quote

Re: AC 301 Bore? December 26, 2015 11:41PM
4.5" bore and 5.25" stroke equals 500 cubes !!! must have rod journals the diameter of a Briggs&Stratton.
Reply Quote

Re: AC 301 Bore? December 27, 2015 05:28AM
2" rod journal, bore can go bigger than 4.5 for a NA gas motor
Reply Quote

Re: AC 301 Bore? December 27, 2015 06:04PM
Do you guys know what the factory ac301 diesel rod dimensions are? Center to center lenth, wrist pin size, rod journal size. Any help would be appreciated
Reply Quote

Re: AC 301 Bore? December 28, 2015 04:52AM
Rod Journal 2.375 with standard bearing . 1.250 dia wrist pin 7.250 cl to cl of holes .Winking
Reply Quote

Re: AC 301 Bore? April 01, 2016 08:31AM
The class I would be building it for I would be limited to 2400 rpm (20% over factory rpm) and has a 5mph speed limit. What setup (sleeves as well as how much stroke) would allow me to get the most cubic inches out of the 301 block without it becoming a ticking timebomb?
Reply Quote

Re: AC 301 Bore? April 01, 2016 02:07PM
Not sure of your rules but the stock CI will work ok a 362 will be your easy and most inexpensive way by far
Reply Quote

Re: AC 301 Bore? April 01, 2016 03:21PM
The way the rules are set up, cubic inches are worth their weight in track distance. To be even somewhat competitive I will need my guess at least 420 ci.
Reply Quote

Re: AC 301 Bore? April 01, 2016 03:34PM
At 2400rpm and 5mph not knowing your rules with pump and turbo size and weight class it's hard to say. Hope you have a rather fat piggy bank
Reply Quote

Re: AC 301 Bore? April 01, 2016 11:35PM
What tractor are you using? What weight?
Reply Quote

Newer Topic Older Topic

Author:

Your Email:


Subject:
Spam prevention:
Please, enter the code that you see below in the input field. This is for blocking bots that try to post this form automatically. If the code is hard to read, then just try to guess it right. If you enter the wrong code, a new image is created and you get another chance to enter it right.
Message:
Website Statistics
Global: Topics: 38,737, Posts: 229,873, Members: 3,334.
This forum: Topics: 37,086, Posts: 225,986.

Our newest member DANNY.WAINSCOTT@YAHOO.COM