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69 429scj
Well the 4 block main is a good idea but it will have highter compression than a 71 block due to deck hight. CJ and SCJ cranks are similar if not the same as the standard 429 crank they only have a test mark on them. They have rods good up to about 500-600 hp and original pistons would give approx 11.0 to 1 compression. The SCJ has mechinical cam and lifters. These have heads with overside ports and large valves. It wouldn't take much to work the heads if you want more hp than the stock 385.
$800 is a good price if it runs and you just want to drop it in. Take this into account if you are looking at rebuilding, Ford Motorsports sell a 460 crate with 485hp for $5600. To buildup a 429 with stock heads can cost up to $4000 if you plan to use that block, heads, and crank, or as little as $1000 if all you change are bearing seals rings and gasgets and light machine work.
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