Crane CCH-312-2-NC
That cam is in my 1984 Crane Catalogue. LSA is 112. First words in the description are 'Rough idle'. The problem with a 4 speed is going to be surging, pig rooting at low rpms, as well as the rough idle. Removing the c'ter removes the hydraulic cushion you had in the drive line to absorb surging etc.
If it was my engine, I would use an Isky 280 Mega or even the next size down. It will pump up the low/mid range where you are cruising.
The 440 is unique among the big blocks in that it has the highest rod/stroke ratio. In layman's language, it means it does not tolerate long duration cams as well as other brands.
Sig Erson was ware of this DECADES ago & warned of this in his catalogue, 440 page.
That cam is in my 1984 Crane Catalogue. LSA is 112. First words in the description are 'Rough idle'. The problem with a 4 speed is going to be surging, pig rooting at low rpms, as well as the rough idle. Removing the c'ter removes the hydraulic cushion you had in the drive line to absorb surging etc.
If it was my engine, I would use an Isky 280 Mega or even the next size down. It will pump up the low/mid range where you are cruising.
The 440 is unique among the big blocks in that it has the highest rod/stroke ratio. In layman's language, it means it does not tolerate long duration cams as well as other brands.
Sig Erson was ware of this DECADES ago & warned of this in his catalogue, 440 page.