New Open Megaphones
- Thread starter Oneofakind
- Start date
Yes, watching, but will have to write the reply out in longhand first, as if I try to wing it at my typin speed the PC will time out on me...later
, kinda glad were both past it Keith, I hate flying over large areas of water!With regard to Keiths posts # 7 & 10.
Difference between original FE 427 versus 427 Windsor by Roush or others.
Major differences:
1. rod ratio~ 1.72/1 on the 427 FE & in the region of 1.51 to 1.55/1 on the Windsor versions ( there are many bore/stroke/rod lengths available for these).
2. Cam Timing particularly duration & overlap, Ford race cams from the 1960's had ~318°or more duration & around 80°+ overlap & on wide lobe centers in the 112/114° region.Not too many sensible cams running much more than 290° duration , 75° overlap and tending toward tighter lobe centers of 110/112° on the current windsor based strokers.
Lot of other differences like port size, component weights etc, but the rod ratio & cam timing alter the piston position in the bore relative to valve opening events.
Thats keeping it as simple as I dare .
Difference between original FE 427 versus 427 Windsor by Roush or others.
Major differences:
1. rod ratio~ 1.72/1 on the 427 FE & in the region of 1.51 to 1.55/1 on the Windsor versions ( there are many bore/stroke/rod lengths available for these).
2. Cam Timing particularly duration & overlap, Ford race cams from the 1960's had ~318°or more duration & around 80°+ overlap & on wide lobe centers in the 112/114° region.Not too many sensible cams running much more than 290° duration , 75° overlap and tending toward tighter lobe centers of 110/112° on the current windsor based strokers.
Lot of other differences like port size, component weights etc, but the rod ratio & cam timing alter the piston position in the bore relative to valve opening events.
Thats keeping it as simple as I dare .