Are all year Atc head and cylinder the same or are the 73-74 different from the newer years? I'm needing to do a top end on a 74 and will need to replace the head.
Roostin' Away
Arm chair racerRoostin Away
Are all year Atc head and cylinder the same or are the 73-74 different from the newer years? I'm needing to do a top end on a 74 and will need to replace the head.
Last edited by DAM shop; 04-24-2019 at 08:48 AM.
90 nickolson Bored and Stroked "The Good"
Big Bore 110 Pauter frame "The Bad"
90 Bored and Stroked “vey’s frame” "The Ugly"
110 JSC frame Bored and Stroked
flat track build. “Shop trike”
1974 original 90 X 2
1974 Original 70.
Power User
The day begins with 3WW
Easiest way is to look up the part numbers on a Honda dealership site like partzilla.com.
Looks like the cylinder is still listed as available. Probably would be the best source since you know 100% it's OEM and brand new. Looks like the fitment list covers all the ATC70 years.
https://www.partzilla.com/product/ho...655cfd71a6ce0e
Cylinder head is a bit of another story, out of production and looks like it's early models only, so like 1977 and older. Since the cylinder is the same for all machines, I'd think the heads could interchange from the newer models, but *something* changed, even if it was a tiny detail.
https://www.partzilla.com/product/ho...655cfd71a6ce0e
The ATC70's are not my strong point, but I know where to look for details. The 77 and older year is based on the first ATC70 being listed as a year based model being listed as a 1978, so I'm assuming K0 and K1 are up to 1977.
Good luck on the part search.
Roostin' Away
Arm chair racerRoostin Away
Thanks for this ps2. It's hard for me to believe that someone on this site doesn't know this information off the top of their head..
90 nickolson Bored and Stroked "The Good"
Big Bore 110 Pauter frame "The Bad"
90 Bored and Stroked “vey’s frame” "The Ugly"
110 JSC frame Bored and Stroked
flat track build. “Shop trike”
1974 original 90 X 2
1974 Original 70.
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