240 or 300 ??
Post Fiend
Joined: Sep 2006
Posts: 14,325
Likes: 14
From: Island Southeast Alaska
So I can bore the 240 out. And put the rotating assembly from the 300 into it? And use either head? How much do I bore the 240? Are these internally or externally balanced?
Hay it's either this or the GMC Diesel.
Hay it's either this or the GMC Diesel.
Elder User
Joined: Feb 2006
Posts: 788
Likes: 0
From: Cascade, ID
Bore?
240 and 300 have the same bore, only the strokes differ. Cranks and Rods are different throws between the two. So if you swap the 300 internals into the 240 you'll have a 300 w/o overbore. It will have a higher compression ration due to the smaller volume of the 240's head. i recomend this swap, it works great for me.
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