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Engine basics => Engine set up tips => Topic started by: John KruziK on December 06, 2009, 06:28:23 PM

Title: McCoys
Post by: John KruziK on December 06, 2009, 06:28:23 PM

Whats the difference between a red head and blue head McCoy  Thanks John

Title: Re: McCoys
Post by: Ralph Wenzel (d) on December 06, 2009, 07:45:14 PM

AFAIK, the only difference is that the Bluehead is for R/C.

Title: Re: McCoys
Post by: rustler on December 07, 2009, 01:42:03 PM

Possibly reds have a sintered iron piston, blues conventional c.i. pistons. Better check with a McCoy expert.

Title: Re: McCoys
Post by: Bill Little on January 15, 2010, 07:27:27 PM

Hi John,

From all I have learned over the years, the McCoy's Head Colors are only different to signify C/L (Red) versus R/C (Blue).

A friend of mine bought a C/L McCoy 40 Stunt that had a Blue head, NIB, back in 1967,  Probably just a mix up on the line.  I have put restrictors (venturis) in place of the R/C carbs in Blue Heads and found no difference in the runs.  Nor could I find any difference in the internal parts.  All the R/C Blue Heads had the intake cut down to hold a carb.

Mongo

Title: Re: McCoys
Post by: Brett Buck on January 15, 2010, 08:16:15 PM

Quote from: Bill Little on January 15, 2010, 07:27:27 PM

A friend of mine bought a C/L McCoy 40 Stunt that had a Blue head, NIB, back in 1967,  Probably just a mix up on the line. 

   I have one like that, too. They may have run out of red that day!

     Brett