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#1
10-02-2003, 11:33 AM
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i know they used different blocks different years, i've been to several websites and have gotten contrasting infomation, im looking into buying a YX code engine, supposably from '74, is there a reliable place i can look up this engine code, or can someone fill me into what engine it is? 400 / 455 ?
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#2
10-02-2003, 11:33 AM
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i know they used different blocks different years, i've been to several websites and have gotten contrasting infomation, im looking into buying a YX code engine, supposably from '74, is there a reliable place i can look up this engine code, or can someone fill me into what engine it is? 400 / 455 ?
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#3
10-02-2003, 12:13 PM
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I beleive 400 or 455 should be cast into the block on the left(driver)side. Near the front of the block. As far as the code someone will be along and help.
Mark C.
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70 Bonneville 455, survivor (Third Owner) |
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#4
10-02-2003, 01:05 PM
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its a 74' 455 block. "455" should be cast into drivers side of block near front
RAIV Don't leave home without it. http://www.kingofmusclecars.com/
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http://www.stockappearingdrags.com http://www.stockappearingdrags.com Come on get off that lawn chair and drive that car like it was meant to be driven. 69' 400 RAIV Judge Conv... 12.86@107 Factory Stock 69' 400 RAIV Trans AM .....12.48@110 Factory Stock 69' 400 RAIV Judge HT..... 13.07@104 Factory Stock 73' 455 SD Trans AM........13's?? not run yet 66' 455 GTO Convert.........12.20@112 non original 63' 421 SD Catalina...........restored fast as h*ll |
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#5
10-02-2003, 05:21 PM
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To add confusion, it could also be a 301. Determine the year of the block first. Look for the date casting located near the distributor.
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So long, farewell. |
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#6
10-02-2003, 10:01 PM
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As was said,usually a CID is cast in the side of the block for the newer engines.
Look on the back of the block,below where the passenger head mounts.There should be a cast number,which is the block casting number. With that you can determine what block it is. With that # go here. Engine Search johnta1 Pontiac Power RULES !!! www.wallaceracing.com 
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John Wallace - johnta1 Pontiac Power RULES !!! www.wallaceracing.com Winner of Top Class at Pontiac Nationals, 2004 Cordova Winner of Quick 16 At Ames 2004 Pontiac Tripower Nats KRE's MR-1 - 1st 5 second Pontiac block ever! W.E.C moment "Every man has a right to his own opinion, but no man has a right to be wrong in his facts." "People demand freedom of speech to make up for the freedom of thought which they avoid." – Socrates |
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