Big blocks normally are pretty easy, I've installed Sanden compressors on over a dozen 383's & 440's... Use the 69-71 Alternator/Power Steering/Water Pump/ Idler & four groove crank pulley... Use all the original spacers in their original locations... Bolt the A/C compressor brackets in place & use the 1/4" shims on the rear mounting tabs.... Should be an easy install with good belt alignment....
