BLOCK
3858174 shows up on the Mortec Site (www.mortec.com) as being used on 327's from 64 thru 67

SUFFIX
Like others have said the suffix should be only 2 letters
HC was used from 65 thru 68 on various passenger cars..all 327's and used in 69 on chevelles,nova, and Cameros...NOT CORVETTES...all were 350's

HO was used in 65 thru 67 CORVETTES 65 it was a 250 Hp
and from 66 thr 68 it was 300 HP CORVETTE ONLY
in 69 it shows up only in a pontiac 350 cu 300 hp

CH was used in 58 and 59 by pontiac 283's.. and used again
in 64 in Novas...again as a 283...

RC was used between 62 and 64 in Pontiacs..327's

HG was used in 65..IN A CORVETTE 327 only...375 hp lol
HC was also used in 69 again in pontiacs but a 350


I used the Complete Chevy V8 engine code Pocket Guide
by Ed McComas (the green book) as my source of info on suffix codes


Bob Griffiths

this engine sounds like a chimera to me.

Well, I guess your the closest. According to this e-mail from www.nastyz28.com


This casting # was used from 1964 to 1967 - as a 327.
HC is the suffix code, which is a 327 (from 65 to 67) used in full size
passenger cars (impalas, etc...)
275 gross hp, with a powerglide transmission. The "H" on the end of the
code means this engine was originally equipped with a holley carb.

The casting date code will tell you wether this came out of a 1965 impala,
1966 impala or 1967 impala.

Regards,
MadMike
http://www.nastyz28.com

http://www.C3VR.com/member_uploads/6301_6400/6361/68vette.jpg

Needed to see if this worked. I have seen other 1968 Shark Corvettes on line with the Stingray logo. In the beginning i thought the logo wasn't added again until 1969. This can get confusing. Was there a part of the year (1968) that this logo was included?

Appreciate your help.

Rod

no on the 1968 but people liked them (and the Louvre inserts).. they were commonly added to 68's by an early owner..

i used to use it as one of my first glance year identifiers.. but ive seen so many 68 with logos and louvre inserts that i look at doors to be sure..

Another quick identifier for '68 versus '69 is the location of the ignition switch:
- on the dash - '68.
- on the steering column - '69.

While it isn't necessarily 100% fool-proof in identifying the year, I think swapping out a dash, steering column and wiring harness would be a little more work than hanging a couple of doors.

The car in that link has later door handles too...we sure its not a 69?

Paragon75Ray said: The car in that link has later door handles too...we sure its not a 69?

im certainly not sure...

sofarvettec3 said: http://www.C3VR.com/member_uploads/6301_6400/6361/68vette.jpg Needed to see if this worked. I have seen other 1968 Shark Corvettes on line with the Stingray logo. In the beginning i thought the logo wasn't added again until 1969. This can get confusing. Was there a part of the year (1968) that this logo was included? Appreciate your help. Rod

From that angle, it does look like a 69. The valance panel should have the back up lights in it, door panels have no pulls, pass. side dash pad has no map pocket, all of these are fairly easy to change, key in the dash would be harder to swap, but why bother?

Well, the door handles certainly look like a 1969. They do not have the recessed look with the push bottom, just the spring loaded finger hold and the push button has been changed to a keylock. The rear is all 1968. The passenger side dash apparently has been changed to the pocket dash. The drivers side is 1968 with the key mounted in the dash.A lot of the engine compartment parts are all dated 1968 except for the motor of course which is 3858174 and F0426HCH, which by the way is found in the book Chevrolet by the Numbers (Colvin)as a 1966 327CI 275 HP Powerglide with Holley, also used in passenger cars. I am missing the vacuum operated lid for the winshield wipers which is next on my list to research.
http://www.C3VR.com/member_uploads/6301_6400/6361/dash-rearview1968.jpg