The Ford Barn

4tford · 02-25-2014, 08:04 PM

motor is a 276 8BA using an Isky 77-B cam. Customer wants stock heads and I have a choice of the following 5 sets of heads. Which would be the best to use. 8BA, EAC, 1CM, 8CM and 8RT Car is a 31 Ford 5 window coupe. Thanks Bill

51 MERC-CT · 02-25-2014, 08:32 PM

Too bad you don't have the choice of EAB's, probably the best choice of the bunch compression wise. The ones you mention are all pretty close to being equal.

4tford · 02-26-2014, 08:37 PM

Thanks for the reply, No EAB's so went with a nice set of 1CM It is a merc engine after all

Ol' Ron · 02-26-2014, 09:25 PM

1CM have the lowest compression of the lot. The 9Ba milled for .050" is nesxt best, OR depending on his radiator a set of 81A. Reguardless of the head used close up the piston to head clearance.

4tford · 02-26-2014, 09:40 PM

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heads need to be milled a bit so will see how they fit when the pistons are installed.

02-25-2014, 08:04 PM	#1
4tford Senior Member Join Date: May 2010 Location: Regina Canada Posts: 1,335	which heads to use motor is a 276 8BA using an Isky 77-B cam. Customer wants stock heads and I have a choice of the following 5 sets of heads. Which would be the best to use. 8BA, EAC, 1CM, 8CM and 8RT Car is a 31 Ford 5 window coupe. Thanks Bill

02-25-2014, 08:32 PM	#2
51 MERC-CT Senior Member Join Date: May 2010 Location: East Hartford, Ct Posts: 5,898	Re: which heads to use Too bad you don't have the choice of EAB's, probably the best choice of the bunch compression wise. The ones you mention are all pretty close to being equal. __________________ DON'T RECALL DOING SOMETHING FOR MYSELF BASED ON SOMEONE ELSE'S LIKES OR DISLIKES

02-26-2014, 08:37 PM	#3
4tford Senior Member Join Date: May 2010 Location: Regina Canada Posts: 1,335	Re: which heads to use Thanks for the reply, No EAB's so went with a nice set of 1CM It is a merc engine after all

02-26-2014, 09:25 PM	#4
Ol' Ron Senior Member Join Date: May 2010 Location: Chester Vt Posts: 8,857	Re: which heads to use 1CM have the lowest compression of the lot. The 9Ba milled for .050" is nesxt best, OR depending on his radiator a set of 81A. Reguardless of the head used close up the piston to head clearance.

02-26-2014, 09:40 PM	#5
4tford Senior Member Join Date: May 2010 Location: Regina Canada Posts: 1,335	Re: which heads to use Sponsored Links (Register now to hide all advertisements) heads need to be milled a bit so will see how they fit when the pistons are installed.