Replacing '93 460 engine w/'97 460
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New User
Joined: Sep 2002
Posts: 6
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From: USA
Replacing '93 460 engine w/'97 460
A little over a month ago I bought a '93 F-250 w/460 engine (80,000 miles). I bought the truck "as is" from a dealer. During the next 3 weeks the truck burned 7 qts. oil and the dealer said to bring in in and he would install new rings. In the shop they found the cylinders badly scored so elected to replace the engine with a low mileage '97 460 (30,000 miles and w/warranty - cost the dealer $2500 for the engine and the install). The shop doing the install omitted the cat system saying it wasn't necessary. After putting several hundred miles on the engine it is running quite strong, I guess the chip has been tuned-in.
Questions:
Is the cat system necessary? Are there any issues that I should be aware of?
BTW, I used to sell cars many years ago and NEVER had any of my employers take such a considerate step for the consumer. Great guy to buy from, heh?
trekker
Questions:
Is the cat system necessary? Are there any issues that I should be aware of?
BTW, I used to sell cars many years ago and NEVER had any of my employers take such a considerate step for the consumer. Great guy to buy from, heh?
trekker
Elder User
Joined: May 2001
Posts: 760
Likes: 0
From: Billings, MT
Replacing '93 460 engine w/'97 460
I'm assuming you mean catalytic convertor by cat system. If so, if the dealer removed it, that is actually against the law nation wide. It's not really bad for the engine, but it is bad for you, as the cat burns benzene in the gas, which is EXTREMELY cancerous. Without the cat you're just blowing benzene gas out the back.
The Law
1989 F-250 HD 4x4
460, C6, BW 13-56, Sterling 10.25" (4.10:1), Dana 44 HD (4.09:1), twin K&N's, no muffler, stock lo-flo cat, Bosch Platinum Plugs (0.060") MSD 6A and TFI Blaster Coil
The Law
1989 F-250 HD 4x4
460, C6, BW 13-56, Sterling 10.25" (4.10:1), Dana 44 HD (4.09:1), twin K&N's, no muffler, stock lo-flo cat, Bosch Platinum Plugs (0.060") MSD 6A and TFI Blaster Coil
Posting Guru
Joined: Mar 2002
Posts: 1,098
Likes: 0
From: CA
Replacing '93 460 engine w/'97 460
Ya mon, just buy a 3" CATCO convertor for like $55 and weld in the exhaust and be legal. It won't hurt the power or sound at all and you'll have the peace of mind of being legal.
Elder User
Joined: May 2001
Posts: 692
Likes: 1
From: Coon Rapids, MN
Replacing '93 460 engine w/'97 460
Well hay, its "the law"!! lol, I just couldn't resist. You can run without cats as long as there isn't emmition tests in your state. that is the way I bought my truck and they way im going to keep it. Sounds nice too
Cargo Master
Joined: Apr 2001
Posts: 2,364
Likes: 3
From: Eustis FL
Replacing '93 460 engine w/'97 460
I currently own 5 benzene-belching monsters. Only 2 of them came factory with 'em. Could never afford new ones at the time the exhaust needed replacing, so off they fell...
Besides, Canada needs some bad air; too clean here right now...
https://www.ford-trucks.com/user_gallery/displaythumbnail.php?&photoid=5362&.jpg
Ford started it; Ford will finish it!
Besides, Canada needs some bad air; too clean here right now...
https://www.ford-trucks.com/user_gallery/displaythumbnail.php?&photoid=5362&.jpg
Ford started it; Ford will finish it!
