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NB 1.8 Head and Inlet Manifold on 1.6 engine.
Posted: Sat Apr 21, 2012 6:46 pm
by Captain Scarlet
Has anyone here done it?
CS
Re: NB 1.8 Head and Inlet Manifold on 1.6 engine.
Posted: Sat Apr 21, 2012 7:01 pm
by sailaholic
Don your fire proof jacket for that one. A quick search would have told you the bore spacing on a 1.8 is different. Ie the heads don't fit.
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Re: NB 1.8 Head and Inlet Manifold on 1.6 engine.
Posted: Sat Apr 21, 2012 7:13 pm
by Captain Scarlet
I refer to Keith Tanners Mazda Miata Performance Projects "Retrofitting an NB head on an NA Engine". Pardon me, is this for the NA8 only?
CS
Re: NB 1.8 Head and Inlet Manifold on 1.6 engine.
Posted: Sat Apr 21, 2012 7:40 pm
by Dweezle
Yes.
Re: NB 1.8 Head and Inlet Manifold on 1.6 engine.
Posted: Sat Apr 21, 2012 8:07 pm
by Captain Scarlet
He does mention the 1.6 in the article. The text implies the conversion is possible. Hence my confusion.
CS
Re: NB 1.8 Head and Inlet Manifold on 1.6 engine.
Posted: Sat Apr 21, 2012 11:31 pm
by mx52nv
From the book:
Project 16 * Retrofitting an NB Head on an NA Engine - pg 45 wrote:Applicable years 1994-1997
Dweezle is correct - the NA8 BP motor is what Keith Tanner is referring to.
Captain Scarlet wrote:He does mention the 1.6 in the article. The text implies the conversion is possible. Hence my confusion.
CS
I can't seem to find any reference to the NA6 model or B6 engine in my copy so perhaps just a little confusion when the author refers to the "NA engine"?
Les
Re: NB 1.8 Head and Inlet Manifold on 1.6 engine.
Posted: Sun Apr 22, 2012 12:20 am
by Captain Scarlet
Thank you for the replies and clarifications you have been most helpful.
CS
Re: NB 1.8 Head and Inlet Manifold on 1.6 engine.
Posted: Sun Apr 22, 2012 7:58 am
by sailaholic
Great to see the question had some research behind it! Apologies on short response.
Fyi, while the NB head flows better stock, that's not the case once you do port work.
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