The Ford Barn

Henry's Lady's Man · 08-02-2016, 12:24 AM

My '30 TS Briggs, Bonnie, is all back together; engine rebuilt and now sporting a B-Cam and a 6.1 Snyder head, new stock valves & springs & new hardened exhaust valve seats. She has been resleaved back to std. I lightened the 65lb flywheel to 55lb for a little better spool-down of rpm without loosing the smoothing effect and inertia. Crank remains unbalanced, with good babbitt on a once-ground crank. I've got about 200 miles on her and she runs better every day.
In regards to the 6.1 H/C Snyder head, I can climb DECENT HILLS in third, accelerating slightly and smoothly. I retorqued the head bolts at 100 miles (glad I did... they had gone down to 35 ft/lbs!!! I returned them to 60 ft/lbs twice now, the last time, they were still at 58-60.
What impressed me the most was the increase in compression. I now have 80lbs on each cylinder. I am pleased as Punch (and Judy?) (The compression before the rebuild was 50, 50, 45, 50). Remember(?) I live a mile above sea level in Albuquerque. I don't know what this compression would be at sea level... perhaps another 5 lbs?
I owe a bunch of this success to advice from THE BARN & "a little help from my friends" in the Poco Quatros Model A Club (ABQ).
Anyway, FWIW, that's my story and I'm stickin' to it!

Mike V. Florida · 08-02-2016, 12:47 AM

Yup, a HC head will do that.

Patrick L. · 08-02-2016, 05:58 AM

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Good to hear that.

C26Pinelake · 08-02-2016, 07:54 AM

Were you surprised?? Wayne.

08-02-2016, 12:24 AM	#1
Henry's Lady's Man Senior Member Join Date: Apr 2015 Location: Albuquerque, NM Posts: 441	Report on 6.1 Snyder Head My '30 TS Briggs, Bonnie, is all back together; engine rebuilt and now sporting a B-Cam and a 6.1 Snyder head, new stock valves & springs & new hardened exhaust valve seats. She has been resleaved back to std. I lightened the 65lb flywheel to 55lb for a little better spool-down of rpm without loosing the smoothing effect and inertia. Crank remains unbalanced, with good babbitt on a once-ground crank. I've got about 200 miles on her and she runs better every day. In regards to the 6.1 H/C Snyder head, I can climb DECENT HILLS in third, accelerating slightly and smoothly. I retorqued the head bolts at 100 miles (glad I did... they had gone down to 35 ft/lbs!!! I returned them to 60 ft/lbs twice now, the last time, they were still at 58-60. What impressed me the most was the increase in compression. I now have 80lbs on each cylinder. I am pleased as Punch (and Judy?) (The compression before the rebuild was 50, 50, 45, 50). Remember(?) I live a mile above sea level in Albuquerque. I don't know what this compression would be at sea level... perhaps another 5 lbs? I owe a bunch of this success to advice from THE BARN & "a little help from my friends" in the Poco Quatros Model A Club (ABQ). Anyway, FWIW, that's my story and I'm stickin' to it! __________________ ... prosperity is not the product of charity but of industry - HENRY FORD

08-02-2016, 12:47 AM	#2
Mike V. Florida Senior Member Join Date: May 2010 Location: South Florida Posts: 14,054	Re: Report on 6.1 Snyder Head Yup, a HC head will do that. __________________ What's right about America is that although we have a mess of problems, we have great capacity - intellect and resources - to do some thing about them. - Henry Ford II

08-02-2016, 05:58 AM	#3
Patrick L. Senior Member Join Date: May 2010 Location: Largo Florida Posts: 7,225	Re: Report on 6.1 Snyder Head Sponsored Links (Register now to hide all advertisements) Good to hear that.

08-02-2016, 07:54 AM	#4
C26Pinelake BANNED Join Date: May 2010 Location: Michigan / Ontario border, Sarnia, Ontario. 50 miles from Detroit and 150 from Toronto. Posts: 5,800	Re: Report on 6.1 Snyder Head Were you surprised?? Wayne.