| ENGINE | YEAR |
DESCRIPTION |
CASTING # | Part
# w/o cam |
| General Motors Inline 6 Cylinder | ||||
| 194, 230, 250 |
62-67 | w/o
A.I.R., large spark plugs, temp send in water outlet (not in head) |
4601 | |
| 68-69 | w/o A.I.R., large spark plugs, temp sending unit in head | 4602 | ||
| 250, 292
|
68-69 | w/A.I.R., large spark plugs, temp unit in head | 4603 | |
| 70-85 | w/o
A.I.R., small spark plug, head & intake manifold separate |
4604 | ||
| 70-85 | w/A.I.R.,
small spark plugs, head & intake manifold separate |
4605 | ||
| 75-76 | Integral head & manifold, 7” wide valve cover | 7585, 0696 | 4613 | |
| 77-78 | Integral head, narrow (5") valve cover, w/o A.I.R. | 7131, 2012 | 4614 | |
| 77-78 | Integral head, narrow valve cover, w/A.I.R. | 14002012 | 4617 | |
| 79-85 | Integral
head, tubular manifold, 2 barrel, specify 4 or 5 A.I.R. holes |
3364 | 4615 | |
| 4.2L | 4642 | |||
| 292 (4.8L) |
85-90 | w/large
A.I.R. holes, 1/8" NPT temp sending unit hole, manifold separate |
3411149, 86411148, 93413990 | 4629 |
| 85-90 | w/o A.I.R. | 3411149, 86411148, 93413990 | 4628 | |