I recently reached an agreement to purchase a motor to replace my rather long in the tooth narrow deck 320 that's on my RV-4. The new motor is a wide deck A model, so still a conical mount. I'm making a list of things that should be done in the process of the swap and wanted to get the VAF input on if I'm missing anything or should consider a different route.
As far as engine mounts bushings go, I understand there is a fancier Lord conical mount but I've been unable to confirm the correct PN. Are these worth the extra scratch over the plain rubber mounts?
FWF accessories my plan was just to either flush the oil cooler or get it overhauled. I also plan to go ahead and replace any old hoses. The new engine is coming with Slick mags and I currently have Bendix; I believe the only change would be my P-lead connections. My current carb and airbox are in good shape and should bolt right up, as should the exhaust.
As far as baffling is concerned, should the baffling that is fit to my narrow deck engine fit on the wide deck? Should new baffling be a consideration? What about things like cylinder wraps while the baffling is off?
Will starter and alternator bracket mounts be a straight swap?
My prop extension uses 7/16" bolts while the new crank has 3/8" lugs. Is swapping the lugs a big deal?
The biggest question is regarding the oil setup. The new engine was previously configured for inverted oil and has the associated fittings and modifications installed. I currently have what I believe is a homemade air-oil separator on my current engine in a half-inverted setup. Would converting the engine back to a normal oil pickup configuration and using just the separator be preferable to hunting down an inverted valve and just completing the inverted setup?
Anything else I'm failing to properly consider?
As far as engine mounts bushings go, I understand there is a fancier Lord conical mount but I've been unable to confirm the correct PN. Are these worth the extra scratch over the plain rubber mounts?
FWF accessories my plan was just to either flush the oil cooler or get it overhauled. I also plan to go ahead and replace any old hoses. The new engine is coming with Slick mags and I currently have Bendix; I believe the only change would be my P-lead connections. My current carb and airbox are in good shape and should bolt right up, as should the exhaust.
As far as baffling is concerned, should the baffling that is fit to my narrow deck engine fit on the wide deck? Should new baffling be a consideration? What about things like cylinder wraps while the baffling is off?
Will starter and alternator bracket mounts be a straight swap?
My prop extension uses 7/16" bolts while the new crank has 3/8" lugs. Is swapping the lugs a big deal?
The biggest question is regarding the oil setup. The new engine was previously configured for inverted oil and has the associated fittings and modifications installed. I currently have what I believe is a homemade air-oil separator on my current engine in a half-inverted setup. Would converting the engine back to a normal oil pickup configuration and using just the separator be preferable to hunting down an inverted valve and just completing the inverted setup?
Anything else I'm failing to properly consider?
