I think if you look again, it's the number "1". The letter "I" was used to represent the number "1" on pre 69 engine build date stampings but beginning in 1969 the number "1" was beginning to be used; like these http://chevellestuff.net/1969/engines/index.htm.
A suffix code of "IHA" makes no sense and neither would a data of T052 - not enough numbers to make a mm/dd code. Dealers would not have installed a warranty engine with a date coded and suffix stamped engine. The warranty was only 2 years or 24000 miles for 1966 Chevelles. Sounds more like someone stamped a 1969 engine suffix code (or tried to) on the engine block but without a photo. If you have a photo of the engine pad, could email it to me off list at ad...@chevellestuff.net? Dale From: chevelle-list-boun...@chevelles.net [mailto:chevelle-list-boun...@chevelles.net] On Behalf Of Barnes, Alex Sent: Monday, June 06, 2011 3:47 PM To: The Chevelle Mailing List Subject: Re: [Chevelle-list] 66 327 Dale, The last 3 letters are IHA not 1. Thats where im getting messed up, the block casting 3858180 indicates a 327 and the intake is what you said. When i looked the heads up it said 283 and 327 and the crank is a 327 crank. The owner had a 283 he was having problems with. So after while the dealer installed a new engine. Thats the story i got. Thanks Alex _____ From: chevelle-list-boun...@chevelles.net [mailto:chevelle-list-boun...@chevelles.net] On Behalf Of Dale Sent: Monday, June 06, 2011 3:38 PM To: 'The Chevelle Mailing List' Subject: Re: [Chevelle-list] 66 327 HA is a suffix code for a 1969 350/300 manual transmission engine, 0521 indicates May 21 (http://chevellestuff.net/qd/engine/sb03_codes_d_hz.htm) but 3858180 is a 65-66 block is the intake (66 327/275 w/A.I.R. cast iron with Rochester. Heads show to be 64-65 283 and crank as 62-65 327. Looks like a hodgepodge of small-block parts. A "replacement" motor? I guess if one considers a pieced together engine a replacement, then it would be. Dale From: chevelle-list-boun...@chevelles.net [mailto:chevelle-list-boun...@chevelles.net] On Behalf Of Barnes, Alex Sent: Monday, June 06, 2011 1:44 PM To: The Chevelle Mailing List Subject: Re: [Chevelle-list] 66 327 Engine numbers T052IHA, 3858180 Intake 3875954 Heads 3795896 Crank 2680 Guys the only number i cant figure out is the T052IHA, i think from the story i got its a replacement motor. I brought it home saturday. Thanks guys for your help. _____ From: chevelle-list-boun...@chevelles.net [mailto:chevelle-list-boun...@chevelles.net] On Behalf Of Chum Nault Sent: Friday, June 03, 2011 10:38 AM To: 'The Chevelle Mailing List' Subject: Re: [Chevelle-list] 66 327 Alex That motor came with a carter 4027s, there is one on ebay right now from a 66. I can't find any info on the CFM. The Holley that came on the L79 350HP was 585 so I'm sure it wouldn't be any more than that. I found a discussion thread where a guy flow tested them and said they were 582 but take that for what it is worth. Chum Nault _____ From: chevelle-list-boun...@chevelles.net [mailto:chevelle-list-boun...@chevelles.net] On Behalf Of Barnes, Alex Sent: Thursday, June 02, 2011 6:15 PM To: The Chevelle Mailing List Subject: [Chevelle-list] 66 327 Hi guys, Recently bought a 66 327 rpo L30 motor and power glide. Does anyone know what the cfm of the carb was? Thanks Alex
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