mgb260 Jim Nichols Sequim,WA (2479 posts) Registered: 02/29/2008 08:29PM Main British Car: 1973 MGB roadster 260 Ford V8 |
Re: 4.5/4.9 Cadillac V8
Crane has conversion rocker studs for Cleveland, 5/16" bottom and 7/16" top for adjustable roller rocker arms. BB Chevy roller rockers are cheaper than Ford. Homemade guide plates. Been on vacation, but too many things going on.
Edited 1 time(s). Last edit at 09/04/2010 11:59AM by mgb260. |
mgb260 Jim Nichols Sequim,WA (2479 posts) Registered: 02/29/2008 08:29PM Main British Car: 1973 MGB roadster 260 Ford V8 |
Re: 4.5/4.9 Cadillac V8
Speedway motors has Chevy valve keepers that raise spring height .030 or .060. Crane has keepers that lower that amount.So you could get the right height without machineing the heads. You would still have to cut the guide down for Viton Perfect Circle type seals. You could do that yourself with a cutter and hand drill. Cut the guide down in the bowls also. Unshroud combustion chambers and good port job. I'll be using Chevy Z28 or LS1 Beehive springs(undecided) and 1.94 stainless intake and 1.5 exhaust valves. Good for up to .550 lift and 6500 RPM, about 105 lbs @ valve closed and 320 lbs @ .550 lift.
Edited 5 time(s). Last edit at 04/15/2012 02:22PM by mgb260. |
roverman Art Gertz Winchester, CA. (3188 posts) Registered: 04/24/2009 11:02AM Main British Car: 74' Jensen Healy, 79 Huff. GT 1, 74 MGB Lotus 907,2L |
Re: 4.5/4.9 Cadillac V8
Jim, Flat tappet ? Look's like lifter bores are long ? Potential for roller ?
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mgb260 Jim Nichols Sequim,WA (2479 posts) Registered: 02/29/2008 08:29PM Main British Car: 1973 MGB roadster 260 Ford V8 |
Re: 4.5/4.9 Cadillac V8
4.9 uses the longer Chevy V8 roller lifters. I just like roller rockers too.
Edited 1 time(s). Last edit at 09/04/2010 12:01PM by mgb260. |
Re: 4.5/4.9 Cadillac V8
Nice looking project neighbor!
I created this account to ask if there was any updates to this project and you beat me to it within a few hours. I'm mainly interested in all the 4.9 trickery. Edited 1 time(s). Last edit at 10/12/2010 01:34AM by serenitythen. |
RideZiLightning Dallas Jolley Tacoma, WA (2 posts) Registered: 10/28/2010 05:23AM Main British Car: 1968 MGB GT 4.9l |
Re: 4.5/4.9 Cadillac V8
I think I just might beat you to it
The car was going to have a 350 in it, but I changed my mind when a snagged up a 4.9l for $150 and 4l60-e from an s-10 for $90 71k on the 4.9l and 27k on the tranny I'm in WA as well btw Edited 1 time(s). Last edit at 10/28/2010 05:28AM by RideZiLightning. |
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mgb260 Jim Nichols Sequim,WA (2479 posts) Registered: 02/29/2008 08:29PM Main British Car: 1973 MGB roadster 260 Ford V8 |
Re: 4.5/4.9 Cadillac V8
You might! Haven't had much time lately. Did the torque converter bolt up to the 4l60E?
Edited 1 time(s). Last edit at 10/28/2010 01:34PM by mgb260. |
Re: 4.5/4.9 Cadillac V8
I sure wish I had as much engine bay space to work with on my planned swap (4.9 in a fwd Saturn).
There's a few completed fwd 4.9 Chevy Citations around the country which sorta inspired me. [www.petacar.org] [thebaron.110mb.com] Good Luck with your projects fellow Washingtonians! |
RideZiLightning Dallas Jolley Tacoma, WA (2 posts) Registered: 10/28/2010 05:23AM Main British Car: 1968 MGB GT 4.9l |
Re: 4.5/4.9 Cadillac V8
Yessir, tc works for fwd, rwd, v6, and v8 setups
I'm no stranger to the swap as I've done multiple 4.9l, 3.8SC and 3.4DOHC Fieros It's all wired up to run out of the car. I just need to finish the dash wiring, lengthen the driveshaft, finish my trans mount and swap out the leaking water pump This car has been sitting since Dec of '88 so it has ALOT of work before it's road worthy |
mgb260 Jim Nichols Sequim,WA (2479 posts) Registered: 02/29/2008 08:29PM Main British Car: 1973 MGB roadster 260 Ford V8 |
Re: 4.5/4.9 Cadillac V8
Turbo build plus other mods from Pennock's archive: [www.fiero.nl]
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mgb260 Jim Nichols Sequim,WA (2479 posts) Registered: 02/29/2008 08:29PM Main British Car: 1973 MGB roadster 260 Ford V8 |
Re: 4.5/4.9 Cadillac V8
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mgb260 Jim Nichols Sequim,WA (2479 posts) Registered: 02/29/2008 08:29PM Main British Car: 1973 MGB roadster 260 Ford V8 |
Re: 4.5/4.9 Cadillac V8
Link to Pennock's forum thread of M90 supercharger on 4.9. My project has been on the back burner for awhile. [www.fiero.nl]
Edited 2 time(s). Last edit at 08/23/2011 07:21PM by mgb260. |
mgb260 Jim Nichols Sequim,WA (2479 posts) Registered: 02/29/2008 08:29PM Main British Car: 1973 MGB roadster 260 Ford V8 |
Re: 4.5/4.9 Cadillac V8
Motor mounts will be about 1 1/2" further forward than 60 degree V6. Also here is an interesting thread from the Fiero forum:
[www.fiero.nl] |
mgb260 Jim Nichols Sequim,WA (2479 posts) Registered: 02/29/2008 08:29PM Main British Car: 1973 MGB roadster 260 Ford V8 |
Re: 4.5/4.9 Cadillac V8
Let's bring this thread back from the dead! More goody's for the 4.9 Cadillac!
[johns49performance.com] |
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MGBV8 Carl Floyd Kingsport, TN (4556 posts) Registered: 10/23/2007 11:32PM Main British Car: 1979 MGB Buick 215 |
Re: 4.5/4.9 Cadillac V8
Check the "Scans from 'Automotive Rebuilder,' June 1994" at the bottom of this page.
[www.nathanbittinger.com] |
BlownMGB-V8 Jim Blackwood 9406 Gunpowder Rd., Florence, KY 41042 (6497 posts) Registered: 10/23/2007 12:59PM Main British Car: 1971 MGB Blown,Injected,Intercooled Buick 340/AA80E/JagIRS |
Re: 4.5/4.9 Cadillac V8
Definitely interesting. Also of note, on a few Cadillac models they used a variant of the Aisin AA80E transmission. Called it something other that AA80E though. I wonder if it would fit this engine?
Jim |
Scott68B Scott Costanzo Columbus, Ohio (564 posts) Registered: 10/25/2007 11:30AM Main British Car: 1968 MGB GM 5.3 LS4 V8 |
Re: 4.5/4.9 Cadillac V8
I very seriously considered this swap back in 2010. Jim N. and I exchanged several PMs about this motor at the time. It is very compact and light and I thought it would fit very nicely in a B engine bay. I had a plan to mount a blower to the intake manifold and use some custom GM OBD1 code called Code59 to run it. It would have been an interesting project. It wasn't long after this that I started considering an LS swap and the rest is history. It would be great to see someone use one in an LBC.
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mgb260 Jim Nichols Sequim,WA (2479 posts) Registered: 02/29/2008 08:29PM Main British Car: 1973 MGB roadster 260 Ford V8 |
Re: 4.5/4.9 Cadillac V8
Johns4.9performance engine start up:
[www.fiero.nl] Pics of beautiful 4.5 V8 John did for a friend: Edited 3 time(s). Last edit at 07/09/2017 08:54PM by mgb260. |
mgb260 Jim Nichols Sequim,WA (2479 posts) Registered: 02/29/2008 08:29PM Main British Car: 1973 MGB roadster 260 Ford V8 |
Re: 4.5/4.9 Cadillac V8
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