Yes parts are available to rebuild your Allstate Engine.
If you didn't already know that these engines were also used for the Henry J and Willy Jeep. So when doing searches for parts try these in addtion to Allstate. In fact you will have more luck under the Willy Jeep and then the (Kaiser-Frazer) Henry J than you will have with the Allstate.
One of the best sources for engine parts is egge machine.
http://www.egge.com/ They can also reface your Tappets.
Also try these Willy guys: Northstar Willy
http://www.northstarwillys.com/ Jungle Jim's Willy
http://willysjeepparts.com/ Kaiser Willy
http://www.kaiserwillys.com/ Kanter
http://www.kanter.com/ Walcks Four 4wd
http://walcks4wd.com/ Midwest Jeep Willy
http://www.midwestjeepwillys.com/Here in Phoenix we have a company (4-Wheel Supply) that has some clutch parts. If you need me to check with them on anything you need let me know.
I recently had my 161L-Head 6cyl rebuilt. I sourced all the parts. If you have any trouble finding parts give me a call at 623-412-7903 or e-mail me at
AZSteele123@aol.com.
Note: I can also supply Allstate Spot Lights, Allstate Foglights, Allstate Radio, and Allstate Turnsignal (less cancelling ring). At times I can supply refurbished Allstate Heaters. I can also help you source other Allstate accessories if you need them.
Best or Luck,
Mark Steele
KFOCI # 9311
1952 Henry J Vagabond Deluxe
Sun City, AZ