Engine and Transmission Tech
tips, technology, tools and techniques related to vehicle driveline components
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Re: 4.5/4.9 Cadillac V8
This is what 180 degree headers with dual exhaust sounds like. Sounds like two four-bangers running together in unison live and in stereo. Probably not the exhaust note for everyone, but I like it! Cheers.
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mgb260 Jim Nichols Sequim,WA (2463 posts) Registered: 02/29/2008 08:29PM Main British Car: 1973 MGB roadster 260 Ford V8 |
Re: 4.5/4.9 Cadillac V8
Jon Olshewski, Auto shop teacher at Salt Lake City, UT East high school and his students are working on an interesting project. They discovered that 215/Rover heads bolt on with the inside headbolts and pushrod and lifters line up. Outside bolts are on the edge of the heads and would need material added for those bolts. Here are some pics of the 215 Olds heads on the 4.9 Caddy block.
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Re: 4.5/4.9 Cadillac V8
Jon here.
The other slightly inconvenient flaw to this is the valves are backwards. As in the camshaft lobes aren't for the correct valve. We have talked about running the engine as a Hot Vee setup or custom making a cam blank and getting a fresh one made... |
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88v8 Ivor Duarte Gloucestershire UK (1041 posts) Registered: 02/11/2010 04:29AM Main British Car: 1974 Land Rover Lightweight V8 |
Re: 4.5/4.9 Cadillac V8
Amazing idea.
I guess the inlet manifold would be the next bit of fun. What about the rocker oiling? V8 |
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mgb260 Jim Nichols Sequim,WA (2463 posts) Registered: 02/29/2008 08:29PM Main British Car: 1973 MGB roadster 260 Ford V8 |
Re: 4.5/4.9 Cadillac V8
I mentioned the Buick 300 heads. He actually was looking at the TA heads. Pushrod oiling. The cam is the biggest ordeal.
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mgb260 Jim Nichols Sequim,WA (2463 posts) Registered: 02/29/2008 08:29PM Main British Car: 1973 MGB roadster 260 Ford V8 |
Re: 4.5/4.9 Cadillac V8
Carl, remember when we were trying to figure out a spider for the short V6 roller lifters for the Buick/Rover. Looks like the Caddy one would line up perfect.
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Re: 4.5/4.9 Cadillac V8
The catch to both of these is that the Cadillac head is only 2/3 the actual material size of the Buick 215 head. So in reality the Buick head is even lighter than this technically in what it replaces.
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Re: 4.5/4.9 Cadillac V8
[youtu.be]
In our application we are all about weight reduction. In race trim this has body panels on it. Basically 2200 lbs or 1000kg and All Wheel Drive. |
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BlownMGB-V8 Jim Blackwood 9406 Gunpowder Rd., Florence, KY 41042 (6469 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
Looks like you may have some studs and exhaust bolts wanting to occupy the same space.
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DiDueColpi Fred Key West coast - Canada (1365 posts) Registered: 05/14/2010 03:06AM Main British Car: I really thought that I'd be an action figure by now! |
Re: 4.5/4.9 Cadillac V8
That Caddy engine is a wet liner, open deck block.
I bet that there's room to move the outer head bolts inboard in the block enough to fit. The rover cam looks close enough to fit as well, with some creative machine work. The only real PITA would be the dist drive gear. Machine the bearing journal off the rover cam and machine the caddy drive gear and journal to press fit back onto the rover cam. Pin, through bolt or braze the whole thing together and your good to go. |
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Re: 4.5/4.9 Cadillac V8
I don't think this design will allow what you are suggesting.
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