Quote:
Originally Posted by wattaway2
You asked for our .02--- how about the 292 you mentioned.Clifford research four barrel intake. get with Holley and I'd bet they could set you up with a throttle body fuel injection system then upgrade to a electronic ignition system and I wouldn't think mercury' 250 hp number would be hard to achieve .you could get with Clifford and see if a cam is needed to match what Mercury was using ?
|
The Clifford intake won't fit with a marine exhaust manifold but I think the original intake was set up for a small 4bbl on some of them. That said since a 292 is 4.8l it probably only flows about 350 cfm, a 4bbl is probably a waste of fuel - the more modern marine 2bbl from a 5.0 will flow about the right amount of air and be a bit more efficient - it might fit the existing intake. I would worry about reversion of water if the cam got too 'hi performance' or someone did not understand the difference between a marine cam and a performance cam - maybe work the head to make it higher flow/more efficient instead? Crowley will do custom cam grinds and match it with roller lifters but I don't know if they know what the marine cam is. A rebuilt mercruiser long block with marine cam is 2200 from Perfomance Pro (reselling for FirstMate).
10-10-2016, 10:01 PM
Threaded Mode