AC 426 May 19, 2019 11:17PM
I’m working with an AC 426 and I have a few questions. How much hp will stock connecting rods safety handle? Is there any glaring weak points I need to address when you start pushing theses engines?

Re: AC 426 May 20, 2019 03:33AM
Heat treat the rods to 43 or they will break

Re: AC 426 May 20, 2019 05:13AM
Definatily heat treat rods and get good rod bolts, arp or similar. Running 800-900 hp on big pin rods no problems yet.

Re: AC 426 May 20, 2019 06:39AM
Thanks for the input do you have any suggestions on a company to treat the rods and I assume to resize them from distortion?

Re: AC 426 May 20, 2019 07:01AM
DLH machine did mine. 301-739-1183
Yeh they’ll have to be resized and put new pin bushings in

Re: AC 426 May 20, 2019 08:30AM
You could switch to rods from another brand engine happens all the time

Re: AC 426 May 20, 2019 11:42AM
I have heard of that being done but not particularly with the AC 426 and I wouldn’t know where to begin with a project like that. Any suggestions would be greatly appreciated.

Re: AC 426 May 21, 2019 11:36AM
Not much to worry about up to 1800hp with hardened, big pin rods. Replace rod bolts with high quality ones every other time apart. Worry about the cylinder head. 2nd Max Simpson.

Re: AC 426 May 21, 2019 12:21AM
Call Max Simpson, he is an expert on AC426 engines!!!!

Re: AC 426 May 22, 2019 12:57PM
i have a set of billet steel rods I would sell made by riverside

Re: AC 426 May 22, 2019 01:18PM
I may be interested in those rods what is the best way to contact you. Also can a P pump be mounted without the use of an aftermarket timing cover?

Re: AC 426 May 23, 2019 07:25AM
Yes. Just have to do some machine work to front plate and have to cut the lower inner mounting ear off the pump

Re: AC 426 May 24, 2019 01:41PM
Have offset billet rods and a really good head and FV 14mm pump and some other parts you may want all high quality pm for info

Re: AC 426 May 28, 2019 12:27PM
585 721 6873

Re: AC 426 May 26, 2019 02:47PM
Call Elvin at 785 817 5235. We have a slew of great parts for a 426.

Re: AC 426 May 27, 2019 04:15AM
i have lot of AC parts email me for detailes
dimock3@gmail.com



maverick

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