- You can identify the injectors you have from the numbers stamped on them
There is a part number and a date stamped on the top of the injector.
Part number format: GM523xxxx*RPD, where RPD = Rochester Products Devision, xxxx is dependant of injector size and application (see table)
- Date format: xyyz, where x = month, yy = day, z = year (1=January, 2=Ferbruary, 3=March, 4=April, 5=Mai, 6=June, 7=July, 8=August, 9=September, O=October, N=Novermber, D=December) .
For example: 8202 = August 20th, 1982
L83 injectors (350 Cross-Fire)
GM5233770*RPD (rear)
GM5233775*RPD (front
LU5 injectors (305 Cross-Fire)
GM5234255*RPD (front)
GM5233765*RPD (rear)
App | Part # NEW | Part # REMAN'D
350 CFI *rear* | 57204 | 27629
350 CFI *front* | 57205 | 27636
350 2bbl Truck | 57202 | 27620
454 2bbl Truck (89) | 57021 | 27625
454 2bbl Truck (92) | 57229 | (none)
305 2bbl F-body (88) | 57020 | 27623
305 CFI *rear* | 57220 | 27626
305 CFI *front* | 57203 | 27632
When you're looking for 454 injectors:
92 454 Chevy Pickup
17084304RPD
9211GM
Injector sizes: (in ml/cycle)
350 CFI Rear: 114
350 CFI Front: 111
350 2bbl truck: 103
454 2bbl early: 124
454 2bbl late: 129
305 F-body: 91
305 CFI Rear: 101
305 CFI Front: 100