Mopar 273-4bbl Combo

James L Miller · 11-25-2016, 06:53 PM

I did catch my engine builder while he was taking a break at the beach on the east coast of Florida. He was thinking along your lines but using a 340 block and get custom sleeves with the flange as you mentioned. That would be really stout cylinder walls for a 273 size engine. He said he did that many years ago when he ran his Colt in MP with a 280 CID (3.935" bore, probably the old 2.96" stroke crank) with W2 heads. I wasn't sure how big of a step was needed at the bottom near the main webbings.

I think I will start with a 273 block with Hardblok on the first go. I don't want to spend a ton of money on this project. The idea is to run quick enough to qualify in Div. 4 divisional and national events here (don't plan on going to Indy).

11-25-2016, 06:53 PM	#19
James L Miller Member Join Date: Apr 2005 Posts: 494 Likes: 6 Liked 25 Times in 16 Posts	Re: Mopar 273-4bbl Combo I did catch my engine builder while he was taking a break at the beach on the east coast of Florida. He was thinking along your lines but using a 340 block and get custom sleeves with the flange as you mentioned. That would be really stout cylinder walls for a 273 size engine. He said he did that many years ago when he ran his Colt in MP with a 280 CID (3.935" bore, probably the old 2.96" stroke crank) with W2 heads. I wasn't sure how big of a step was needed at the bottom near the main webbings. I think I will start with a 273 block with Hardblok on the first go. I don't want to spend a ton of money on this project. The idea is to run quick enough to qualify in Div. 4 divisional and national events here (don't plan on going to Indy). __________________ Mopar 2 Ya!