R RWK New Member Sep 20, 2012 2 0 1 Sep 27, 2012 #1 Sep 27, 2012 #1 Will a 4.6 Romeo short block out of a 2003 Mustang interchange with the 4.6 Romeo block in my 1998 Mustang GT? thanks
Will a 4.6 Romeo short block out of a 2003 Mustang interchange with the 4.6 Romeo block in my 1998 Mustang GT? thanks
wmburns SN Certified Technician Aug 14, 2009 5,892 514 204 Houston Texas Sep 27, 2012 #2 Sep 27, 2012 #2 yes and no. Matching a set of non-PI heads with a PI bottom end is likely to give an unacceptable CR. What are you trying to accomplish? Why not use a full PI motor?
yes and no. Matching a set of non-PI heads with a PI bottom end is likely to give an unacceptable CR. What are you trying to accomplish? Why not use a full PI motor?
D Deleted member 38176 Sep 28, 2012 #3 Sep 28, 2012 #3 wmburns said: yes and no. Matching a set of non-PI heads with a PI bottom end is likely to give an unacceptable CR. Click to expand... +1 That setup would yield a CR well into the 8's....which on an N/A motor will run like a DOG! Reactions: Winters98GT
wmburns said: yes and no. Matching a set of non-PI heads with a PI bottom end is likely to give an unacceptable CR. Click to expand... +1 That setup would yield a CR well into the 8's....which on an N/A motor will run like a DOG!
Winters98GT Whoop...whoop-whoop-whoop-whoop...GANGNAM STYLE!!! Founding Member Nov 29, 1999 5,520 1,291 224 H Town Sep 28, 2012 #4 Sep 28, 2012 #4 It will run like a dog no matter what you plan to do with the car. Low compression is not good, it's old school thinking no matter what you do with the car like I posted in another thread. NA/Nitrous-11.1:1+ FI-10.1:1-10.5:1. Reactions: Deleted member 38176
It will run like a dog no matter what you plan to do with the car. Low compression is not good, it's old school thinking no matter what you do with the car like I posted in another thread. NA/Nitrous-11.1:1+ FI-10.1:1-10.5:1.