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What engine do I have?

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Old Jul 10, 2005 | 05:03 PM
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What engine do I have?

First I would like to thank all on this forum for all their help...it is grealty appreciated and hopefully as I keep learning I can give back....

Now for what I really need help with.....I need to do some work on my engine and I am trying to determine wht I have in there. I bought the 1990 BRONCO with 220,000 miles on it and the engine has been slowly dying since then. I have the original window sticker witch matches the VIN and claims the engine is a 351W. However when I went to change the oil pan gasket the only gasket that would fit was for a 302HO (year?). The 351W they sold me at the parts store did not fit. How can I find out what engine I have in my truck before I start buying rebuild parts?

Thanks!
 
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Old Jul 10, 2005 | 08:17 PM
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I thought the oil pans were the same. But you can measure the lower intake were it bolts too the heads. Measure from edge too edge. 302 should be about 9" and 351w should be about 11"
 
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Old Jul 10, 2005 | 09:39 PM
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It should say what the engine is on one of the valve covers too, if they're still stock.
 
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Old Jul 11, 2005 | 11:47 PM
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I agree with BRK. If you can find any casting numbers on the heads or block, that will help with the engine ID, too. The 302H.O. was never offered on the Bronco.
 
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Old Jul 12, 2005 | 06:05 AM
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The 302 HO may not have been offered in a Bronco but that doesn't mean somebody else didn't drop one in there.

Another way is to look at your firing order, the 351 is different than the 302. Below is the diagrams on the firing orders.
 
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Old Jul 12, 2005 | 08:07 AM
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Thanks! the firing order looks like a good thing to check, I will check tonight afterwork!
 
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Old Jul 12, 2005 | 11:50 AM
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Checking the firing order will not work, I have a 302H.O. in my Bronco and it uses the same firing order as the 351.
 
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Old Jul 12, 2005 | 03:43 PM
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Crap. that seemed like the easiest way...
 
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Old Jul 12, 2005 | 05:33 PM
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Isn't a 5.8 or a 5.0 stamped on the valve covers?
 
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Old Jul 12, 2005 | 08:34 PM
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Yeah that's what I said, clean the value covers if you don't see anything, it should be there.
 
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Old Jul 12, 2005 | 09:19 PM
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Yes Captain P4, mine is a 302 and it is stamped into the valve cover, you just have to really look for it under all that "stuff"

By the way I am really diggin your avatar, WOW
 
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Old Jul 12, 2005 | 10:00 PM
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I thought it was stamped on the throttle body area near the passenger's side.

-Matt
 

Last edited by Beast12; Jul 12, 2005 at 10:03 PM.
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Old Jul 14, 2005 | 04:41 PM
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My dad's f350 w/5.8 has it stamped on the valve covers.. :shrug:
 
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Old Jul 14, 2005 | 05:59 PM
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My 351 has a big 5.8 stamped right on top of the upper manifold.
 
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Old Jul 15, 2005 | 02:19 AM
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Well, my 302 does not have it on the valve covers or the manifold. The top of my upper just says Ford Fuel Injection. The intake topic has already been discussed before. Right now the only thing I can think of is the knock sensor. I am almost positive that the 351 does not have one. It is located at the back of the block on the drivers side.
 
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