View Full Version : RC 15, RC 27, RC 33 Radiator caps
mhm1966
09-29-2020, 07:52 PM
Three original radiator caps. RC 15 is perfect for restoration, $50.00 plus shipping. RC 27 is in usable condition, $15.00 plus shipping. I also have an original RC 33 in usable condition, $15.00 plus shipping and a new reproduction AC 307 13 LB., $40.00 plus shipping.
firstgenaddict
09-30-2020, 05:12 PM
I will take the RC 33 if it has the wording "DO NOT OPEN..." vs "never open..."
mhm1966
09-30-2020, 06:30 PM
Sorry, the cap reads " Never Open Hot ". It is a 15 LB. closed system cap and I believe it was used starting in 1973.
firstgenaddict
10-01-2020, 03:03 PM
Thanks,
According to the NCRS the RC 33 which reads DO NOT OPEN is the correct ASSEMBLY LINE radiator cap. We have one CORRECT "DO NOT" cap in decent shape and numerous decent caps with "NEVER", which are service replacements for 1973 Model Year.
Jonesy
10-01-2020, 08:07 PM
Here my original RC33 cap thats never been off the car on my 1974 z28. Its the NEVER OPEN HOT variety.
Jonesy
10-01-2020, 08:12 PM
Heres the NOS over the counter one with crisp letters.
mhm1966
10-01-2020, 09:41 PM
The RC 33 cap I have for sale came off a 1974 Z/28 that had 1,000 miles on the odometer. This cap is mint.
mssl72
10-02-2020, 05:04 AM
PM sent
mhm1966
10-02-2020, 02:41 PM
Replied to PM.
mhm1966
10-09-2020, 07:34 PM
RC 33 cap SOLD. RC 15 cap SALE PENDING. RC 27 and AC 307 #13 Still Available.
vBulletin® v3.8.11, Copyright ©2000-2025, vBulletin Solutions Inc.