Quote:
Originally Posted by bigblockv6
I think it would not hurt to take away some of the rotating mass out of these engines specially in a light duty application, I would definitely take the 351M over the 305 engine. The engine will spin freer with less weight and that may actually improve in normal driving situations. The next time I build another GMC V6 I plan on using Chrysler 426 Hemi rods and have the crank ground and stroked for that but it will definitely be a 401 or 478 V6.
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I was thinking the same about the 426 Hemi rods. I saw somwhere that someone had used them at some time (they hadn't mentioned offset grind) and once I saw how much the crankshaft would have to get reground, figured an offset grind would be worth it for the extra stroke. Also with the offset grind, it would make up for some of the difference in connecting rod length. I haven't had a 305 apart yet to measure the rod length, but from what I have seen mentioned, they are long.