The Ford Barn

wayne munro · 02-24-2011, 08:12 PM

I have a 1940 v-8 60 that I think was used in a race boat. Stock bore is 2.6 in. this block is bored to 2.810 (thats close a 1/4" over). did they run these motors with that big of bore? How would you keep it from over heating? Who would make pistons for it? Is this the size they bore to to install sleeves?

Dale Fairfax · 02-24-2011, 09:39 PM

That results in a 158" engine (as compared to the 136" stock). I'm sure I've heard of midget racecars with "60's of that size. And, yes, they may have overheated but certainly not all of them-or enough to discourage such (mis)use. Alchohol fuel helped keep them cool as well.

Flathead · 02-25-2011, 12:24 AM

Any work done to the ports?

296 V8 · 02-25-2011, 01:06 AM

If someone bothered to build it I bet they ran it
Big bores have little to nothing to do with “running hot”
((((Old myth that is total bull squat))))

wayne munro · 02-25-2011, 07:11 PM

I cleaned all the ports with a die grinder and a rotery file then I follower up with a stone to give a smoother finish

Dale Fairfax · 02-25-2011, 07:16 PM

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Another thought: In a race boat you'd not have to worry about cooling-they didn't run a radiator; they circulated the water they were running on.

olracer66 · 02-27-2011, 08:05 PM

I'm surprised that a "60" is bored .210 over! Wow... The sleeves require about a .083 bore, give or take. There are some good guys in the flathead world that have 60 pistons still in "semi" finish, but I wouldn't think the "semis" would be .210 over. Good luck

Henry/Kokomo · 02-27-2011, 08:30 PM

I would guess someone like Egge would / could make you any piston you need. Maybe some of the 'Barns engine builders will weigh in here. FWIW

Gary in La. · 02-27-2011, 09:09 PM

I had a V8-60 racing engine some years back that had very thick cast sleeves and was bored to .100" . I did'nt bother checking sizes because it was scrap iron. The webs on the mains were full of cracks. This engine also had the '40 crank rod journals ground for the '37-'39 rods was relieved and had a lot of porting work.

Dale Fairfax · 02-28-2011, 08:32 AM

Do you suppose it's bored for a +.060 Lincoln Zephyr piston? (Yeah, I know, the pin height would be wrong too) Most likely it's bored for sleeves.

02-24-2011, 08:12 PM	#1
wayne munro Junior Member Join Date: Nov 2010 Location: tacoma washington Posts: 22	V-8 60 big bore I have a 1940 v-8 60 that I think was used in a race boat. Stock bore is 2.6 in. this block is bored to 2.810 (thats close a 1/4" over). did they run these motors with that big of bore? How would you keep it from over heating? Who would make pistons for it? Is this the size they bore to to install sleeves?

02-24-2011, 09:39 PM	#2
Dale Fairfax Senior Member Join Date: May 2010 Location: Indianapolis Posts: 250	Re: V-8 60 big bore That results in a 158" engine (as compared to the 136" stock). I'm sure I've heard of midget racecars with "60's of that size. And, yes, they may have overheated but certainly not all of them-or enough to discourage such (mis)use. Alchohol fuel helped keep them cool as well.

02-25-2011, 12:24 AM	#3
Flathead Senior Member Join Date: May 2010 Location: Southern Maine Posts: 1,502	Re: V-8 60 big bore Any work done to the ports?

02-25-2011, 01:06 AM	#4
296 V8 BANNED Join Date: May 2010 Location: nor~cal Posts: 455	Re: V-8 60 big bore If someone bothered to build it I bet they ran it Big bores have little to nothing to do with “running hot” ((((Old myth that is total bull squat))))

02-25-2011, 07:11 PM	#5
wayne munro Junior Member Join Date: Nov 2010 Location: tacoma washington Posts: 22	Re: V-8 60 big bore I cleaned all the ports with a die grinder and a rotery file then I follower up with a stone to give a smoother finish

02-25-2011, 07:16 PM	#6
Dale Fairfax Senior Member Join Date: May 2010 Location: Indianapolis Posts: 250	Re: V-8 60 big bore Sponsored Links (Register now to hide all advertisements) Another thought: In a race boat you'd not have to worry about cooling-they didn't run a radiator; they circulated the water they were running on.

02-27-2011, 08:05 PM	#7
olracer66 Member Join Date: May 2010 Location: Colorado Springs, CO Posts: 33	Re: V-8 60 big bore I'm surprised that a "60" is bored .210 over! Wow... The sleeves require about a .083 bore, give or take. There are some good guys in the flathead world that have 60 pistons still in "semi" finish, but I wouldn't think the "semis" would be .210 over. Good luck

02-27-2011, 08:30 PM	#8
Henry/Kokomo Senior Member Join Date: May 2010 Location: Kokomo, Indiana Posts: 1,731	Re: V-8 60 big bore I would guess someone like Egge would / could make you any piston you need. Maybe some of the 'Barns engine builders will weigh in here. FWIW

02-27-2011, 09:09 PM	#9
Gary in La. Senior Member Join Date: May 2010 Location: Louisiana Posts: 866	Re: V-8 60 big bore I had a V8-60 racing engine some years back that had very thick cast sleeves and was bored to .100" . I did'nt bother checking sizes because it was scrap iron. The webs on the mains were full of cracks. This engine also had the '40 crank rod journals ground for the '37-'39 rods was relieved and had a lot of porting work.

02-28-2011, 08:32 AM	#10
Dale Fairfax Senior Member Join Date: May 2010 Location: Indianapolis Posts: 250	Re: V-8 60 big bore Do you suppose it's bored for a +.060 Lincoln Zephyr piston? (Yeah, I know, the pin height would be wrong too) Most likely it's bored for sleeves.