Rod and piston identification - Hot Rod Forum : Hotrodders Bulletin Board
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
User Name
Password
lost password?   |   register now

Reply
 
LinkBack Thread Tools
  #1 (permalink)  
Old 09-16-2009, 06:37 PM
zildjian4life218's Avatar
Listen and Learn
 
Last wiki edit: DIY junkyard electrical fan controller
Last journal entry: SBC 305 Twin Turbo
Last photo:
Join Date: Dec 2008
Location: WNY/Rochester, New York
Age: 25
Posts: 1,586
Wiki Edits: 7

Thanks: 44
Thanked 8 Times in 8 Posts
Rod and piston identification

So i came across this deal for a thousand bucks. Its from a trust worthy local engine builder. he said before i can take it from the shop he would tear it down with me and go through all the clearances to make sure everything was good. The specs on the pistons are dome, forged aluminum and 4.030 bore. The number under the piston said 400-SL. The connecting rods are aluminum and look like top fuel rods. Very big. The are 6" and the number on the cap was brc62. The crank is a bryant forged steel crank and has a 3" stroke. Can anyone tell me more about these rods and pistons? Thanks

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 09-16-2009, 07:23 PM
techinspector1's Avatar
Senior Curmudgeon
 
Last wiki edit: DynoSim combinations Last photo:
Join Date: Oct 2005
Location: Hemet, California, USA
Age: 72
Posts: 12,552
Wiki Edits: 326

Thanks: 691
Thanked 877 Times in 745 Posts
The only reason I might be interested in a 306 cubic inch motor with aluminum rods is if I had to use that displacement to make a racing class where class is determined by car weight divided by cubic inches and it would put me in at the top of the class. And if I planned to tear the motor down periodically to Zyglo the rods.....or toss 'em after a couple hundred passes.....or whatever....

The rods were manufactured by Brooks Racing Components.
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 09-16-2009, 07:44 PM
zildjian4life218's Avatar
Listen and Learn
 
Last wiki edit: DIY junkyard electrical fan controller
Last journal entry: SBC 305 Twin Turbo
Last photo:
Join Date: Dec 2008
Location: WNY/Rochester, New York
Age: 25
Posts: 1,586
Wiki Edits: 7

Thanks: 44
Thanked 8 Times in 8 Posts
I had a feeling the small displacement would be a downfall. And of coarse if i swapped the crank i would have to change pistons so not really worth it in the end i guess. My plan is to build a nitrous motor good for 650hp. This setup is still cheaper then buying new crank rods and pistons. Are these BRC rods any good?

Last edited by zildjian4life218; 09-16-2009 at 07:53 PM.
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 09-16-2009, 08:40 PM
techinspector1's Avatar
Senior Curmudgeon
 
Last wiki edit: DynoSim combinations Last photo:
Join Date: Oct 2005
Location: Hemet, California, USA
Age: 72
Posts: 12,552
Wiki Edits: 326

Thanks: 691
Thanked 877 Times in 745 Posts
Post removed by author....

Last edited by techinspector1; 09-18-2009 at 11:35 AM.
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 09-17-2009, 11:35 AM
68NovaSS's Avatar
Hotrodders.com Moderator
 
Last wiki edit: Working with chromed bolts
Last journal entry: New to me T-Bucket
Last photo:
Join Date: Sep 2002
Location: Nine Mile Falls, Washington
Posts: 5,215
Wiki Edits: 9

Thanks: 99
Thanked 130 Times in 121 Posts
Chongxxx (abwenzi) has left the auditorium
__________________
Boost adds dignity to what would otherwise be a vulgar brawl...

Midnight Sun Street Rod Association
Reply With Quote Quick reply to this message
  #6 (permalink)  
Old 09-17-2009, 05:01 PM
zildjian4life218's Avatar
Listen and Learn
 
Last wiki edit: DIY junkyard electrical fan controller
Last journal entry: SBC 305 Twin Turbo
Last photo:
Join Date: Dec 2008
Location: WNY/Rochester, New York
Age: 25
Posts: 1,586
Wiki Edits: 7

Thanks: 44
Thanked 8 Times in 8 Posts
Can anyone tell me more about these rods? I have never used aluminum rods before and never heard of Brooks racing components.
Reply With Quote Quick reply to this message
  #7 (permalink)  
Old 09-17-2009, 07:11 PM
ericnova72's Avatar
More for Less Racer
 
Join Date: Jan 2007
Location: S.W. Lower Michigan
Age: 47
Posts: 8,899
Wiki Edits: 0

Thanks: 19
Thanked 362 Times in 332 Posts
Quote:
Originally Posted by zildjian4life218
Can anyone tell me more about these rods? I have never used aluminum rods before and never heard of Brooks racing components.
Good rods if you had bought them new, but I would NEVER buy an engine with aluminum rods or even a set of aluminum rods without knowing EXACTLY how many racing laps or 1/4 mile passes were on them. They have a definite lifespan, usually 100 passes or 200 at the most before they are changed out because they work harden in use leading to fatigue(blowing up). The Bryant crank is a premium piece, if that and the block seem reasonably priced to you then OK, but the rods would be unusable in anything I put together, they are wall decorations/Ebay pieces/scrap IMO.

Aluminum rods are like hydraulic cam and lifters or gaskets - NEVER buy them used!!
Reply With Quote Quick reply to this message
  #8 (permalink)  
Old 09-17-2009, 07:46 PM
zildjian4life218's Avatar
Listen and Learn
 
Last wiki edit: DIY junkyard electrical fan controller
Last journal entry: SBC 305 Twin Turbo
Last photo:
Join Date: Dec 2008
Location: WNY/Rochester, New York
Age: 25
Posts: 1,586
Wiki Edits: 7

Thanks: 44
Thanked 8 Times in 8 Posts
Thank you ericnova for the reply. My machinist said the engine had 26 1/4mi runs on it then the guy who was running the motor switched classes and was not allowed to run aluminum rods. It was putting out high 600hp. The way i am looking at it is in order for me to build an engine that will hold that much power will be about $2500 for the short block alone, so if this block gets me through the summer i would be happy. Any other input on this? plans r 200shot of spray, high 600hp, 2800lb truck. I want to be in the low 10second range(cage is only good to 9.99 i believe).
Reply With Quote Quick reply to this message
  #9 (permalink)  
Old 09-17-2009, 08:16 PM
ericnova72's Avatar
More for Less Racer
 
Join Date: Jan 2007
Location: S.W. Lower Michigan
Age: 47
Posts: 8,899
Wiki Edits: 0

Thanks: 19
Thanked 362 Times in 332 Posts
I would definitely take the deal if I was looking now that you know the history. Brooks is a quality rod, known more to hardcore racers than the public. The Bryant crank alone was nearly twice the price of the whole deal when new and pretty much the best crank you can buy. I would not be afraid to spray 350 hp on it if everything checks out.

This rotating assembly and engine size will make best power near 8800-9000 rpm. Do you have heads and valvetrain good for that?, or just fit what you have and live with what you can get at a lower rpm?? Just curious now.
Reply With Quote Quick reply to this message
  #10 (permalink)  
Old 09-17-2009, 08:21 PM
zildjian4life218's Avatar
Listen and Learn
 
Last wiki edit: DIY junkyard electrical fan controller
Last journal entry: SBC 305 Twin Turbo
Last photo:
Join Date: Dec 2008
Location: WNY/Rochester, New York
Age: 25
Posts: 1,586
Wiki Edits: 7

Thanks: 44
Thanked 8 Times in 8 Posts
He also told me it was balanced to 10,000rpm. The block is a 4 bolt main 3970010 chevy casting. Do u think i would be safe at 700hp? I cant afford aftermarket heads so im thinking of porting some vortec heads, maybe 1.6 exhaust valve and machining them for higher lift.
Reply With Quote Quick reply to this message
  #11 (permalink)  
Old 09-17-2009, 08:30 PM
ericnova72's Avatar
More for Less Racer
 
Join Date: Jan 2007
Location: S.W. Lower Michigan
Age: 47
Posts: 8,899
Wiki Edits: 0

Thanks: 19
Thanked 362 Times in 332 Posts
Quote:
Originally Posted by zildjian4life218
He also told me it was balanced to 10,000rpm. The block is a 4 bolt main 3970010 chevy casting. Do u think i would be safe at 700hp?
With the short stroke, ...probably, likely, yes. There is just always that chance of failure due to the fact it is a factory block, nothing you can do about that. For the price, I wouldn't even be worried about it, just run the he11 out of it and if it blows just laugh, wink, smile and move on.
Reply With Quote Quick reply to this message
  #12 (permalink)  
Old 09-17-2009, 08:33 PM
zildjian4life218's Avatar
Listen and Learn
 
Last wiki edit: DIY junkyard electrical fan controller
Last journal entry: SBC 305 Twin Turbo
Last photo:
Join Date: Dec 2008
Location: WNY/Rochester, New York
Age: 25
Posts: 1,586
Wiki Edits: 7

Thanks: 44
Thanked 8 Times in 8 Posts
lol. Agreed So will vortec heads support that much power with some nitrous.
Reply With Quote Quick reply to this message
  #13 (permalink)  
Old 09-17-2009, 08:36 PM
ericnova72's Avatar
More for Less Racer
 
Join Date: Jan 2007
Location: S.W. Lower Michigan
Age: 47
Posts: 8,899
Wiki Edits: 0

Thanks: 19
Thanked 362 Times in 332 Posts
Quote:
Originally Posted by zildjian4life218
He also told me it was balanced to 10,000rpm. The block is a 4 bolt main 3970010 chevy casting. Do u think i would be safe at 700hp? I cant afford aftermarket heads so im thinking of porting some vortec heads, maybe 1.6 exhaust valve and machining them for higher lift.
You added the Vortec head after I posted, it won't even come close to being enough head and cost you more to get into shape than just using a Sportsman or RHS vortec casting and equipping it with good valves and springs. If you aren't thinking solid lifter at a minimum and better yet solid roller you are just wasting your time, anything hydraulic will be bitter disappointment. You are going to need 5000 stall mimimum and 4.88 or deeper gears for this engine to shine.
Reply With Quote Quick reply to this message
  #14 (permalink)  
Old 09-17-2009, 08:40 PM
zildjian4life218's Avatar
Listen and Learn
 
Last wiki edit: DIY junkyard electrical fan controller
Last journal entry: SBC 305 Twin Turbo
Last photo:
Join Date: Dec 2008
Location: WNY/Rochester, New York
Age: 25
Posts: 1,586
Wiki Edits: 7

Thanks: 44
Thanked 8 Times in 8 Posts
I was thinking solid flat tappet for sure. I guess i will have to re think my build or find deeper pockets.
Reply With Quote Quick reply to this message
  #15 (permalink)  
Old 09-18-2009, 06:37 AM
zildjian4life218's Avatar
Listen and Learn
 
Last wiki edit: DIY junkyard electrical fan controller
Last journal entry: SBC 305 Twin Turbo
Last photo:
Join Date: Dec 2008
Location: WNY/Rochester, New York
Age: 25
Posts: 1,586
Wiki Edits: 7

Thanks: 44
Thanked 8 Times in 8 Posts
Can anyone tell me more about the pistons. I would like to know the specs on them like compression distance, and dome cc.
Reply With Quote Quick reply to this message

Recent Engine posts with photos

Quick Reply
Message:
Options

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:
If you do not want to register, fill this field only and the name will be used as user name for your post.
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.




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
stroke to rod ratio jacobm99 Engine 28 12-16-2013 05:46 PM
Cam Help shsouthard Engine 18 03-29-2009 09:33 PM
383 vs 350 TheCiscoKid Engine 86 05-03-2008 03:10 PM
327 in 88 Truck pete379 Engine 101 01-19-2006 09:03 PM
longest rods in std deck 454 bbc?? deuce_454 Engine 11 01-30-2004 10:06 AM


All times are GMT -6. The time now is 05:30 AM.


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.