Thanks for your replies guys, If I could safely bore .125 over where could I get pistons from , I only see up to .60 on most parts lists and would it be suitable as a daily driver or would it run hot? It definitly will not be a stock 235 John nd I would love a 261 or a 270/302 GMC but they are very hard to get here ,I've been trying for 3 years so if anyone has a good ready to run streetable performance engine for sale let me know now before I order the parts for mine- Cheers