Pontiac Firebird 1967-2002 Birds of a feather flock together

Any one have a Olds 455 in the 81 TA?

Thread Tools
 
Search this Thread
 
Old 10-30-2007, 02:52 PM
  #1  
12 Second Club
Thread Starter
iTrader: (9)
 
1FSTLS1's Avatar
 
Join Date: Feb 2006
Location: West VA
Posts: 688
Likes: 0
Received 3 Likes on 2 Posts

Default Any one have a Olds 455 in the 81 TA?

ANy advice on this project??
Old 10-30-2007, 04:14 PM
  #2  
TECH Enthusiast
iTrader: (7)
 
1 Bad Ass Formula's Avatar
 
Join Date: Feb 2003
Location: Hanover, PA
Posts: 587
Likes: 0
Received 0 Likes on 0 Posts

Default

I'd imagine you've made sure the engine will fit. I know I've heard of some people putting Old's 455 engines in their 2nd gen TA. So I'd try to search the web. Though I can't picture you will should you need the dimensions of an Old's engine let me know. I have a 350 (very similar in size to a big block, so I'm told) I'm putting in a street rod and my uncle has a race prepped 455 in his garage which I can get dimensions from.
Old 10-30-2007, 04:20 PM
  #3  
TECH Resident
iTrader: (2)
 
30thanniv's Avatar
 
Join Date: Aug 2004
Location: Florida
Posts: 774
Likes: 0
Received 1 Like on 1 Post

Default

Google Mondello and Oldsmobile. He will set you up.
Not sure about olds, but pontiac 455's are not big blocks, fyi.
Old 10-31-2007, 01:11 PM
  #4  
Staging Lane
iTrader: (3)
 
dcrews's Avatar
 
Join Date: Dec 2004
Posts: 81
Likes: 0
Received 0 Likes on 0 Posts
Default

FYI- they put the 403 olds in 2nd gen T/As, and the mounts and stuff should fit just fine. I believe the 403 and 455 use the same motor mounts/etc.
Old 11-01-2007, 08:52 AM
  #5  
12 Second Club
Thread Starter
iTrader: (9)
 
1FSTLS1's Avatar
 
Join Date: Feb 2006
Location: West VA
Posts: 688
Likes: 0
Received 3 Likes on 2 Posts

Default

FYI- they put the 403 olds in 2nd gen T/As, and the mounts and stuff should fit just fine. I believe the 403 and 455 use the same motor mounts/etc.
__________________

That seems right now I just have to find them.

My block was dropped off at the shop the other day.
Old 11-01-2007, 09:59 AM
  #6  
12 Second Club
Thread Starter
iTrader: (9)
 
1FSTLS1's Avatar
 
Join Date: Feb 2006
Location: West VA
Posts: 688
Likes: 0
Received 3 Likes on 2 Posts

Default

IS this what I need???

http://cgi.ebay.com/ebaymotors/ws/eB...TQ:MOTORS:1123
Old 11-01-2007, 01:11 PM
  #7  
Teching In
 
01TA79's Avatar
 
Join Date: Dec 2005
Posts: 2
Likes: 0
Received 0 Likes on 0 Posts

Default

Originally Posted by 1FSTLS1
Yeah those mounts should work if you don't already have some nice new ones. Just make sure you get the engine mount brackets (the ones bolted on the actual engine block) that are from an olds 403 originally installed in a Trans Am. As i'm not sure what car the 455 you have came from and they may not bolt on with the brackets it has on there now. (if any)
Old 11-06-2007, 07:30 PM
  #8  
TECH Addict
iTrader: (1)
 
JohnnyBs98WS6Rag's Avatar
 
Join Date: Jul 2005
Location: NE Indiana
Posts: 2,193
Received 203 Likes on 161 Posts

Default

SBOs (330, 350, 403) have shorter deck heights than BBOs (400, 425, 455). So while the 455 block will bolt right in place of a 403 (engine mounts and trans), the longer stroke of the BBOs place the heads higher, so headers will need to be different. Also, the carb will sit higher than a 403 so the shaker air cleaner will need to be modified to work w/ the stock hood. Although a "tucked" Toro intake manifold may offset that. Watch out for clearance between valve covers and brake vacuum booster as well.
Old 11-06-2007, 08:05 PM
  #9  
12 Second Club
iTrader: (2)
 
IROC403's Avatar
 
Join Date: Feb 2007
Location: lynn ma.
Posts: 134
Likes: 0
Received 0 Likes on 0 Posts
Default

its a easy swap, just finding parts. i used to have 455's in a lot of cars years ago. even a 403 in a 3'rd gen (my screen name stuck) just use a good radiator and starter, they get warm !!! good luck with 500 lbs. of torque



Quick Reply: Any one have a Olds 455 in the 81 TA?



All times are GMT -5. The time now is 01:50 PM.