	';
Merry Christmas and welcome to Packard Motor Car Information! If you're new here, please register for a free account.

Lost Password?

Register now!

FAQ's

Main Menu

Home

Forums

Literature Archive

Photo Archive

Model Information

Packard Decoder

Factory Service Index

Factory Parts List

Parts Cross-Reference

Paint Cross-Reference

Vehicle Registry

Dealership List

Directory

Upcoming Events

Recent Forum Topics

1940 160 Coupe

Merry Christmas, Happy Holi…

wvsantas 1953 Clipper Deluxe

Various CL Pickings

1958 Argentine Export Packa…

443 front brake universal j…

Don’s 1937 (120) 138CD De…

wanted for master cylinder

The 2025 "Packard Cari…

What's the Weirdest Experie…

Who is Online

179 user(s) are online (170 user(s) are browsing Forums)

Members: 2
Guests: 177

29tons, DM37, more...

Helping out...

PackardInfo is a free resource for Packard Owners that is completely supported by user donations. If you can help out, that would be great!

Video Content

Visit PackardInfo.com YouTube Playlist

Packard Forum Index » Pre-War (1899-1942)

Topic: 356 exhuaust valve guides

Bottom

Previous Topic

Next Topic Register To Post

Bill Butterworth

356 exhuaust valve guides

Home away from home

Anyone have information on the reason the top .400" of the guides were relieved to 3/8" in the 40 through 47 and not in the 48-50 356 engines. This has something to do with sticking exhaust valves but why then did Packard go back to non relieved guides in the 48-50 356 engines? Did other Packard engines also have this change?

Posted on: 2013/4/22 10:16