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833 Views 2 Replies 3 Participants Last post by  mattliston
Hi i've a Honda EF 1991 1.5L 16v D15b1 DPI

But I had an accident and my block was ruined. Any other block that is similar to D15b1 that can only change without problems?
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buy a d15b2 from any 88-91 dx/lx civic or a d15b7 from 92-95 civic dx/lx cars or del sol S 93-95.

re-use your current intake amnifold and ecu.

you will run slightly lean up top due to the b2/b7 cams being higher performance.

You can always swap your B1 camshaft into the B2/B7 head, set your valve lash after installation, and be back to factory power.

Do not leave the B2/B7 camshaft in place. It will add 20hp but it will run very lean up top. The B1 electronics are more focused on low end torque and gas mielage.
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