Originally Posted by hemicar1971
Talked to a raced/speed shop owner that made the call to Mitchells for me. He said the lifter bores on a 4.50 Hemi Block come with sleeved lifters. Only thing is maybe another 6 weeks till you can get a 4.50 bore but a 4.25 is available.Good information on the Bolts will keep that in mind.

6 weeks is not too bad. But remember, you can bore the 4.25" block to 4.5", the sleeves OD and block ID are the same for both. Just thicker sleeves on the BMP "small bore" block.