99 Astro van 4.3 block into a 94 blazer.

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99 Astro van 4.3 block into a 94 blazer. - 5/11/2008 7:44:47 AM    94NDTA   Posts: 18 Joined: 12/22/2007 Status: offline Well, my bottom end of my blazer needs to be rebuilt because there was a ton of gas that leaked into the engine. I found a wrecked 99 astro van with a 4.3 in it for VERY cheap, can I swap the block into the blazer and just transfer over the intake/parts, or will it not work. Post #: 1

RE: 99 Astro van 4.3 block into a 94 blazer. - 5/11/2008 10:51:15 AM    swartlkk Posts: 13748 Joined: 5/1/2005 From: Waterloo, NY Status: online You can use the short block.  There will be differences in the front cover and some other misc machining that has nothing to do with your '94, but the heads and accessories will swap over.   _____________________________ Kyle- 2004 Rainier 1970 Chevelle - Resto 1974 K5 Blazer - Resto (in reply to 94NDTA) Post #: 2

RE: 99 Astro van 4.3 block into a 94 blazer. - 5/11/2008 8:50:15 PM    94NDTA   Posts: 18 Joined: 12/22/2007 Status: offline So it would be a direct swap? (in reply to swartlkk) Post #: 3

RE: 99 Astro van 4.3 block into a 94 blazer. - 5/12/2008 5:43:38 AM    swartlkk Posts: 13748 Joined: 5/1/2005 From: Waterloo, NY Status: online This article should give you detailed information as to the changes that were made to the block. Rebuilding the Chevy 262 by Doug Anderson courtesy of EngineBuilderMag.com _____________________________ Kyle- 2004 Rainier 1970 Chevelle - Resto 1974 K5 Blazer - Resto (in reply to 94NDTA) Post #: 4

RE: 99 Astro van 4.3 block into a 94 blazer. - 6/12/2008 6:58:07 PM    94NDTA   Posts: 18 Joined: 12/22/2007 Status: offline It didn''t give a lot of info on 99 shortblocks, Would I have to do any maching or anything special for it to work? (in reply to swartlkk) Post #: 5

RE: 99 Astro van 4.3 block into a 94 blazer. - 6/13/2008 5:23:22 AM    swartlkk Posts: 13748 Joined: 5/1/2005 From: Waterloo, NY Status: online In ''98, the stanchions for the supports to the transmission were removed from the sides of the block as the oil pan was changed to an aluminum pan and the transmission bell housing was made to be removable and a full round bell housing.  In that regard, you will no longer have any place for the supports to bolt to on the sides of the block.  The oil pan will be an all aluminum pan, although you should be able to swap your old pan onto the new block. _____________________________ Kyle- 2004 Rainier 1970 Chevelle - Resto 1974 K5 Blazer - Resto (in reply to 94NDTA) Post #: 6

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