I have a 1999 2.5L with 185,000 miles. It had a very shaky idle. So we pulled the head and found the exhaust valve in cyl. 1 sunk and cracked also there was a crack between cyl 3 and cyl 4. I have been looking all over for a replacement head and cant find one. Could I run one from a 2.0 , 2.3 or other sized motor? I was told I have the one with the smaller valve springs.

there are some on ebay for $300

Cylinder Heads International out of Texas. I got one from there awhile back and was not disappointed. Free shipping, no upfront core charge as long as you send back your cracked head (with their free return shipping), and a 1 year warranty. Should cost $275-$300.

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1997 Ford Ranger XLT short bed regular cab
2.3L Lima
5 speed manual