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#1
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230 and 250 Pontiac OHC heads
Are 230 and 250 OHC heads interchangeable or are they different
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#2
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Quote:
Compression ratio was determined by combustion chamber size. 66 1 bbl 66 4bbl both have short spark plug 67 1 bbl 67 4bbl longer plug,same as 68-9 68-9 1bbl this is the largest combustion chamber,lowest compression ratio 68-9 4bbl very close to 66 and 67 1 bbl combustion chamber size so what makes this so important is a mix and match of components can alter the compression drastically. highest will be a 66-7 4 bbl head on a 68-9 250 lowest a 68-9 1bbl head on a 66-7 230
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Everything comes and goes Pleasure moves on too early And trouble leaves too slow |
#3
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Thanks, camper-6
230 is in my 1961 jag MKII sedan and needs a rebuild. Have an extra head but need to identify before I use it if 230 head needs replacing. |
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