Len S

Hey every one, Ive got a 1976 Magnum marine with trs drives Small blocks what props should i run, it has 19's now but the guy i bought the boat from did not care about speed....(NO GOOD) I talk to another guy who used to own my boat 10 years ago he ran 23's got 62 to 65mph, WHAT WOULD WORK THE BEST!!!!! NOW THAT I AM GOING TO BUY A NEW SET

bbladesprops

A little more information is needed to suggest the perfect fit.
I assume you haven't run the boat as of yet. Wide open throttle rpm and speed plus your personal odservations can help us to better suggest the best propeller.

However, on your hull, Lab Finished 3 blade propellers to your specific recipe needs will offer the best top speed.

Len S

Yes i have run the boat all last season, Its has Twin 350's 320hp it came with 19' props on it now,, runs 5100rpm wide open at 52-53 mph with i 1 person or 4 person dose not mater always seems to be the same, boat handles well

Guy that had boat before 10 years ago told me this week that with 23'S he ran 62-64mph Thanks talk soon

bbladesprops

I believe Labbed 21 Mirage Plus propellers rotating inward would be the ticket. If speed is the major concern.

However, this will not put you at 63 mph but rather achive aprox. another 3-5 mph. I'm not sure the original owner is accurate. Or, the motors could be tired.