Small Block Duster
Well-Known Member
Hi guys, I have another question on my 360 that's going into my 75 Duster. It's a street application mostly street driven and will be raced a little bit and not babied. 10 to 1 comp. Ported RPM heads, 340 Victor or performer RPM intake. The block is a 79 360 out of a pickup and is 30 over. I can list all the specs if you wish but to save space the bottom line is I think my upper RPM range is going to be about about 7,000. Not consistently, maybe flashing to 7000 on occasion. 6500 RPM my normal shift point. All my past stuff I turned a lot harder than that. From all the information I've read here I'm getting the feeling most 360s don't like being revved as much as small block Chevys even in a state of similar tune. Maybe because the stroke is just a little longer and the mains are a lot bigger. The block is done and I'm running a 5-quart + 1 kevko pan (they say it will fit the chassis without modification) and a standard volume sealed power oil pump and kevko oil pump pickup. I have a Mopar performance high pressure spring to put in it. Don't know what the bearing clearances are going to be yet. No trick oiling modifications have been done. Nothing drilled out. At this point in the build the block is done being machined. Would you run a high volume pump instead? I'm limited to that size oil pan. 5 in the pan and one in the filter. I'm worried about pulling the pan dry when standing on the motor. I'm basically worried about losing the bottom end when I'm playing with it on the street. That's probably harder on it than actually racing it. I know other motors have been built this way and they worked but I know you guys have much more experience. I'm on a budget and if this was a race motor I would consider it a sportsman type of build. Spending some money to make power and be reliable but only spending the where it's actually needed. I am not bucks up. This build is more of a older school 1980s type build. After spending so much money on motors in the past and being involved in racing I'm even seeing street guys buying brand new $3,000 bare blocks because they think they need it and they're going to turn no more than 5000 rpm. But if you have the money you can do what you want with it. That's really made me long for the old days. When people built motors using more knowledge and experience than money. I find spending money needlessly on a car build annoying. Maybe I would too if I had money to burn lol. Also my hydraulic isky lifters have holes in the pushrod seat but I I will have non drilled ball and cup pushrods. No oil flow through them. The bottom line is I don't want to have bottom end problems considering my relatively stock lubrication system. So I wonder if my system is good enough, if the lifters with the holes at the top are okay, and if my bearing clearances are correct if my standard volume pump will be enough considering it's not an endurance motor. I appreciate all your help guys.
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