Engine Swap Everything about swapping an engine into your Third Gen.....be it V6, V8, LTX/LSX, crate engine, etc. Pictures, questions, answers, and work logs.

big block swap

Thread Tools
 
Search this Thread
 
Old 06-12-2002, 10:06 PM
  #1  
Member
Thread Starter
 
bigbrianiroc-z's Avatar
 
Join Date: Jun 2002
Location: bellville texas
Posts: 177
Likes: 0
Received 0 Likes on 0 Posts
big block swap

i am thinkin about putting a gm crate ram jet 502 in to my stock 86 iroc and i was wondering of anyone has done this swap or any big block swap into their car. and is their a problem with room in the motor compartment?
Old 06-12-2002, 10:27 PM
  #2  
Member
 
Jeffbird's Avatar
 
Join Date: Apr 2002
Location: Card Board Box
Posts: 172
Likes: 0
Received 0 Likes on 0 Posts
Its a tough task man. Big block spings,brake lines re routed, headers are a whoore, there is like 0 room, when you open the hood all you see it Motor.cross member for the TH400 tranny etc.... list goes on
Old 06-12-2002, 10:31 PM
  #3  
Moderator

 
AlkyIROC's Avatar
 
Join Date: Jul 1999
Location: 51°N 114°W, 3500'
Posts: 17,120
Likes: 0
Received 123 Likes on 104 Posts
Car: 87 IROC L98
Engine: 588 Alcohol BBC
Transmission: Powerglide
Axle/Gears: Ford 9"/31 spline spool/4.86
Search through the archives. There are plenty of messages about BBC swaps and it's not that hard to do.
Old 06-12-2002, 11:25 PM
  #4  
Supreme Member
 
87RS402's Avatar
 
Join Date: Dec 2000
Location: Klamath Falls, Oregon
Posts: 1,582
Likes: 0
Received 0 Likes on 0 Posts
If you have time, paitience, money and an above average command of the use of four letter words at the appropriate times you should have no problems.
Old 06-13-2002, 10:46 AM
  #5  
Senior Member

 
88 427 Camaro's Avatar
 
Join Date: Jul 1999
Location: Mpls, MN USA
Posts: 931
Likes: 0
Received 0 Likes on 0 Posts
Car: 88 Camaro
Engine: 427 BBC
Transmission: T400
All the info you need is on my page at www.koolmeister.com

Miles
Old 06-26-2002, 06:11 PM
  #6  
Member
 
9.0L Firebird's Avatar
 
Join Date: Jun 2000
Location: NY, NY
Posts: 157
Likes: 0
Received 0 Likes on 0 Posts
One of the easier GM swaps to do. Buy some good headers (not hookers) and plan ahead how you will tackle the job.
Old 06-26-2002, 09:05 PM
  #7  
Junior Member
 
egmonster's Avatar
 
Join Date: Feb 2002
Location: Yellowknife NT Canada
Posts: 73
Likes: 0
Received 0 Likes on 0 Posts
I really have to know how much you paid (approximately, minus the machine work you had done to it...) for the bare aluminum big block. I would expect a lot. It's an interesting idea though, as it would weigh very very little . Excellent handling, incredible power! watch out .
Old 06-27-2002, 03:28 AM
  #8  
Junior Member
 
ekgerke's Avatar
 
Join Date: Jun 2002
Posts: 5
Likes: 0
Received 0 Likes on 0 Posts
Originally posted by 9.0L Firebird
One of the easier GM swaps to do. Buy some good headers (not hookers) and plan ahead how you will tackle the job.
Why not hookers? Clearance problems?
Old 06-27-2002, 08:02 AM
  #9  
Supreme Member
 
ATOMonkey's Avatar
 
Join Date: Jun 2001
Location: Indianapolis IN
Posts: 1,522
Likes: 0
Received 0 Likes on 0 Posts
I love the BIG BLOCK! Fitting it won't be a problem when I get back from the chassis shop. This is a long way down the road, but there is a guy in my neighborhood who can put in double A-arm low profile suspension, rack and pinion. A fiberglass lift off front end courtesy JC Whitney, and a 10 point cage will follow that. Then it's just smooth sailing. All I have to do is dig up about 10 g's that I have lying around
Old 06-27-2002, 08:09 AM
  #10  
Senior Member

 
88 427 Camaro's Avatar
 
Join Date: Jul 1999
Location: Mpls, MN USA
Posts: 931
Likes: 0
Received 0 Likes on 0 Posts
Car: 88 Camaro
Engine: 427 BBC
Transmission: T400
Why not hookers? Clearance problems?
Yep. There is a list on my page at www.koolmeister.com
of everything I had to modify to get the Hookers to fit.

Miles
Old 07-01-2002, 06:23 PM
  #11  
Member
 
9.0L Firebird's Avatar
 
Join Date: Jun 2000
Location: NY, NY
Posts: 157
Likes: 0
Received 0 Likes on 0 Posts
a few responses:

Hooker headers fit like crap and they are 1 7/8 x 3"; most of my small blocks run larger headers. Lemons, Quay and Davis make good headers for this swap ( I swear by the davis headers, it made the job a lot easier).

An aluminum block is $5k-$7k new + machine work. Merlin aluminum blocks are $4,995 CN billet Blocks are $7,400. I bought the motor used and complete out of a Nitrous Pro-Mod car. It was freshed by RS Competition of West Babylon, NY and is now in the Firebird.

www.nescaracing.com
http://www.geocities.com/RSCompetition/
Old 07-01-2002, 07:10 PM
  #12  
Moderator

 
AlkyIROC's Avatar
 
Join Date: Jul 1999
Location: 51°N 114°W, 3500'
Posts: 17,120
Likes: 0
Received 123 Likes on 104 Posts
Car: 87 IROC L98
Engine: 588 Alcohol BBC
Transmission: Powerglide
Axle/Gears: Ford 9"/31 spline spool/4.86
Unless you're making over 600hp or spinning the BBC over 7000 rpm, 1 7/8" headers is enough. Bigger is not always better. Those street SBC with 1 3/4" headers would probably see more power if they went to 1 5/8"

Last edited by AlkyIROC; 07-01-2002 at 11:30 PM.
Old 07-01-2002, 10:22 PM
  #13  
Senior Member
 
vortecfcar's Avatar
 
Join Date: Sep 2000
Location: Crystal Lake Il
Posts: 840
Likes: 0
Received 0 Likes on 0 Posts
Car: '98 Z
Engine: LS1/6
Transmission: 4l60E
how do I get ahold of the painless headers 9.0L ?

I read miles list of relocated sheetmetal and I'd like to do anything but, is there a number or website where I can read about or talk to someone who knows more about the non-hooker big block units.
Thanks for the help.
Old 07-01-2002, 11:34 PM
  #14  
Moderator

 
AlkyIROC's Avatar
 
Join Date: Jul 1999
Location: 51°N 114°W, 3500'
Posts: 17,120
Likes: 0
Received 123 Likes on 104 Posts
Car: 87 IROC L98
Engine: 588 Alcohol BBC
Transmission: Powerglide
Axle/Gears: Ford 9"/31 spline spool/4.86
How much money do you want to spend on headers? The Hookers are the cheapest at around $370. I think the Lemon Headers is around $900. Big tube headers = $$$. You could buy a kit and fabricate your own but you wouldn't be saving much money.

In the long run it's easier to just make the Hookers fit.
Old 07-03-2002, 10:58 AM
  #15  
Senior Member
 
vortecfcar's Avatar
 
Join Date: Sep 2000
Location: Crystal Lake Il
Posts: 840
Likes: 0
Received 0 Likes on 0 Posts
Car: '98 Z
Engine: LS1/6
Transmission: 4l60E
figures, nothing cheap is ever easy- In the car business anyway
Old 07-03-2002, 11:26 AM
  #16  
Member
 
86 sc's Avatar
 
Join Date: Jan 2002
Location: belton texas
Posts: 134
Likes: 0
Received 0 Likes on 0 Posts
what about the block hugger headers in jegs?
Old 07-16-2002, 05:43 PM
  #17  
Member
 
9.0L Firebird's Avatar
 
Join Date: Jun 2000
Location: NY, NY
Posts: 157
Likes: 0
Received 0 Likes on 0 Posts
Block huggers point directly at the factory K member. I agree with Stephen about the primary tubing size - bigger is not alway better, my concern was with a 3" collector that has a sharp bend in it. Look through the hooker/hedman catalog and the only BBC headers with a 3" collector are for tow rigs. most others are 3.5"-4" diameter. Most aftermarket heads (even merlin street) have exhaust ports that are cut for 2"+ headers. I spent some $$ for the Davis headers and was money well spent IMO.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
theshackle
Tech / General Engine
4
03-05-2017 06:37 PM
midge54
Engine/Drivetrain/Suspension Wanted
1
01-29-2017 07:00 PM
theurge
TPI
7
08-21-2015 12:46 PM
sreZ28
Engine Swap
4
08-14-2015 07:48 PM
st.evel07
Engine Swap
5
08-13-2015 06:15 PM



Quick Reply: big block swap



All times are GMT -5. The time now is 12:16 AM.