Hot Rod Forum : Hotrodders Bulletin Board - Reply to Topic
Hotrodders.com -- 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> 427 BBC tall block questions
User Name
Password
lost password?   |   register now

Thread: 427 BBC tall block questions Reply to Thread
Title:
  
Message:
Trackback:
Send Trackbacks to (Separate multiple URLs with spaces) :

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:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

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.



Additional Options
Miscellaneous Options

Topic Review (Newest First)
10-06-2011 09:48 PM
bobmaki025
actually

A lot of the 427 tall decks had good heads, just need bigger valves. You can get this done + new cam & lifters for $500 or so. Use the spacers right and they shouldn't leak.
04-18-2011 06:47 AM
BOBCRMAN@aol.com The tall deck uses a massive 4 ring piston. This has to be replaced for any kind of performance.
To replace these pistons with hi-perf stuff. You will need +.400 rods. Harmonic balancer is not hi-perf usable. Also not, are the two thermostat intake. Water pump and distrib.
There are very few, if any "street" type or tunnel ram used/affordable intakes for a tall deck. Most will need spacers. They leak. Then an adjustable ring distrib. or intake/distrib mods.

Tall deck truck heads won't work (flow) without massive work $$$$..Best to replace with better parts.

So you end up with 1-block and 1- crank.. And a motor that has limited ready made headers/accessories for street use.

Sell the block to a Drag/boat/puller guy. Get a short deck block and build a usable/affordable BBC engine.
04-17-2011 10:14 PM
stinger460
reply

the tall deck 427 is similar the standard 427 but hence the name tall deck, smaller bore longer stroke and lower compression makes for a lot of torque, not really designed for street or racing apps without putting a bunch of money in it, you could change the cam for whatever application you need, wouldnt use a tunnel ram thats more for top end motors, suggest a single 4 barrel with a dual plane intake and perhaps a 1" carb spacer. the carb is going to be determined by how much mods are done to motor and cam rpm range. go to holley web site to carb selector, will get you in ball park
04-17-2011 08:52 PM
George4
427 BBC tall block questions

This is my first post on the forum. I have a Goodwrench 427 tall deck with low miles on it, it was just used very little for many years shortly after the new engine was put in, the truck was a 1977 C65. Anyways it ran awesome in the truck so I pulled it this weekend with the plan to throw it into some kind of project car after I get the engine built up. So what do you guys know about this engine, has anyone used the same 427 BBC for a build? I was thinking I should put a new cam in it and get rid of the stock Holly with a governor on it. What CFM carb should I use, 750? And what kind of luck have you guys had with what cams? I was also thinking of using a tunnel ram intake with single carb, I think I will need some spacers to make it work on the tall deck. Thanks
~George

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


All times are GMT -6. The time now is 03:33 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.