CLASS RACER FORUM - View Single Post - Mopar X-block question

JCChildress · 10-13-2011, 09:09 AM

The shop I work at, we build a lot of Nascar Late model stock engines. The Dodge engines are R blocks with 59 degree lifter banks and 340 mains. We run around a 4.020 bore and the deck height starts at 9.200 and we cut about .100 off. They are real heavy and very hard to find. I would like to find an old X-block for a new engine were building but first I need to know how short we can safely cut the deck on an X-block. Surely someone would know. Also if anyone knows the whereabouts of one of these blocks, please let me know. Thanks so much.

10-13-2011, 09:09 AM	#1
JCChildress Member Join Date: Apr 2007 Posts: 210 Likes: 13 Liked 13 Times in 6 Posts	Mopar X-block question The shop I work at, we build a lot of Nascar Late model stock engines. The Dodge engines are R blocks with 59 degree lifter banks and 340 mains. We run around a 4.020 bore and the deck height starts at 9.200 and we cut about .100 off. They are real heavy and very hard to find. I would like to find an old X-block for a new engine were building but first I need to know how short we can safely cut the deck on an X-block. Surely someone would know. Also if anyone knows the whereabouts of one of these blocks, please let me know. Thanks so much.