Re: 400

[Joeydahook9@xxxxxxx]

  Forgot, if it's a 71-76 it has 906 heads (good) 77-78 had 452 heads. (a 
little better) They are the same except for flatter port floors and inductioned 
hardened valve seats for unleaded on the 452's.. Both have 90cc chambers. 2.08 
intake/1.74 exhaust valves.  The compression in in the low 8's for both.  Cast 
pistons, cast crank, forged rods.  Pistons will be needed for 10 to 1 or 
higher.  If it's a 71 block, casting number ending in 230, it has heavy duty webs 
and is the best 400 block to get. Very scarce..buy it!  The late cop cars had 
chromed valve shafts and roller timing chains.  Don't know about motor home 
motors. Good luck!  Joe again

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b7yoMz.