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Camshaft interchangeability? Need help and advice.

 
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Old 02-10-2017, 07:33 PM
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Camshaft interchangeability? Need help and advice.

So... Got back to work on my Prelude today, the intake cam gear was loose, went to tighten it up and tightened it to spec and it was still loose, upon further inspection I noticed the cam gear had a crack in it (it was an aftermarket adjustable cam) which in turn broke off the end of the cam, which is why the gear wouldn't tighten Anyway....... I took out the cam, the bolt was broken off in the cam too!! but I called down to my U-pull it (since their cam price is only $15) and they had no 88-91 Preludes on their lot, which intake cam can I use for a 90 Prelude SI B21A1 engine.
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Old 02-11-2017, 04:37 PM
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Re: Camshaft interchangeability? Need help and advice.

You should do what you can to find the correct cam. Even a b20a/b20a5 intake cam would be better than using something from a non-prelude engine. Try contacting people advertising part-outs. I know there is one or two going on over on preludepower.com for 90/91 Si part-outs. You should also check ebay or car-part.com.

You can probably use a b18a or b18b intake cam, but it's not a direct fit. You'll need to have a little machined off the gear end, and use a shorter key. I don't know how this would affect performance, but would probably result in less power.
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