Some BBC questions - Hot Rod Forum : Hotrodders Bulletin Board -- Hot Rod Forum

Register FAQ Search Today's Posts Unanswered Posts Auto Escrow Insurance Auto Loans
Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Engine
User Name
lost password?   |   register now

LinkBack Thread Tools
  #1 (permalink)  
Old 02-18-2010, 03:00 AM
Registered User
Last photo:
Join Date: Jan 2009
Location: Springfield, MO
Age: 32
Posts: 1,177
Wiki Edits: 0

Thanks: 11
Thanked 0 Times in 0 Posts
Some BBC questions

First off, I have a stock 74 454 short block. I used heads off a 78 454. The heads, rocker arms and push rods are all from the 78. They are all matched together, the same push rod is with the same rocker arm on the same valve it came off of. However, i'm using the 74 cam and lifters which were not removed so they are still matched. The only mis matched point is the lifter to push rod contact point. Is it going to matter that i used push rods from a different engine?

Second, I'm ready to install the intake if the push rod situation isn't an issue. The intake is a stock cast iron qjet intake. It was left out in the rain, so there is rust inside the intake. Is that going to be a problem? Its not flaking off or anything, just has colored the intake. Ive got it soaking in a sodium hydroxide (lye) and water solution (similar to hot tank solution) but i think its a bit weak. Ill rinse it off tomorrow and dry it. Do i need to dip it in a stronger solution or just clean it up and install it?

And lastly. Since this engine is used but has been sitting for quite a while (has new timing gears and gaskets but thats it) should I use a special cam lube? (the ZDDP additive i keep hearing about). And whats this about using rotella oil? I was planning on using it, its supposed to have more additives that are better for the cam if i remember right.

Thats it for now i think.

Reply With Quote Quick reply to this message
Sponsored Links
  #2 (permalink)  
Old 02-18-2010, 05:34 AM
cobalt327's Avatar
Last wiki edit: Intake manifold
Last journal entry: 1980 Malibu Wagon
Last photo:
Join Date: Mar 2009
Posts: 5,031
Wiki Edits: 1616

Thanks: 128
Thanked 616 Times in 565 Posts
The push rods will not matter- as long as they're the correct length and diameter to match your set-up and guideplates.

For "re break-in", while the intake's off, you can reach in w/a small brush and apply break-in lube to the cam. Lifter feet as well, BUT just motor oil (not break-in lube) on the lifter body. Be real sure the lifters are free to rotate.

Put a dab of break-in lube on the p-rod ends and valve stem and rocker arm tip. Also coat the pivot ball and rocker arm where they touch.

Add a dose of ZDDPlus, etc. to the oil before start up. Prime the oil system. There's been a recent post about what oils still have the good stuff, I don't have it at the moment, but you'll see it.

As long as rust isn't able to flake off, what you're doing is probably as good as most inexpensive treatments that can be done at home for ridding the runners of rust. Might take a stronger solution if you want to get it all. I'd run it as-is, I do believe.

Good luck.

PS- Don't forget to give it 40 degrees! lol (kidding...)
Reply With Quote Quick reply to this message

Recent Engine posts with photos

Quick Reply

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last name), your email address and other required details in the form below.
User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:
Please select your insurance company (Optional)


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
Ford C7AW E 9" Rebuild Help and Disc Brake Questions Mustangsaly Transmission - Rearend 12 11-06-2005 12:44 AM
Going from BBC back to SBC(2) will have questions... Bumpstick Engine 4 09-20-2005 09:15 AM
ANSWERS TO COMMON QUESTIONS -- PLEASE READ BEFORE POSTING Jon Hotrodders Site Suggestions and Help 0 07-07-2005 03:58 PM
Suspension-Brakes-Steering Common Questions Jon Suspension - Brakes - Steering 0 10-16-2003 03:19 PM
Questions, questions, questions? slider in wa Transmission - Rearend 2 09-27-2003 02:01 PM

All times are GMT -6. The time now is 09:56 PM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright 1999 - 2012. All Rights Reserved.