i have just acquired a 91 isuzu pick up truck with the 2.6L motor and i
was wonderin if there was any performace parts available for this motor

have you visited on eBay? just last week i searched for better performance parts for my 2000..isuzu performance parts was the best option..

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Calmini.com has a camshaft, and headers, I put it in mine and I could feel a difference.
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I've heard good things from folks who have installed the Calmini products. I've read a couple of threads where the owners installed the 2.3 head onto their 2.6 blocks to increase the compression ratio.

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urchinTracker();</>Given the popularity of the Isuzu P'up here in Australia as the Holden Rodeo, plus the fact that the G-series engine was sold here in the Gemini (US I-mark) &amp; very popular as well, you should try searching on some Australian sites for parts. I had a cam custom ground locally &amp; combined with a K&amp;N filter, set of headers and some double valve springs, and dropped two seconds off my ET's at the strip. [img]smileys/smiley2.gif[/img]