New project allison

[Oldallison]

Its a 21 ft ...1981 allison i got to restore but thats all i know about it any info would be nice let me know what model or any histery on this type of allison would be helpful thanks
Josh

[RIVERRUMMER 70]

WOW ......NEVER SEEN A THREE ACROSS THE FRONT SETUP?
WIFE ON ONE SIDE GIRLFRIEND ON THE OTHER! SWEET.

MOTOR COULD BE ANYTHING UNDER THERE ....GOT PICS WITH THE COWL OFF?
GOOD HD SINGLE RAM CLAMP, BASS MID, SPORTMASTER LOWER.
GOOD BASE UNIT TO WORK WITH, ID BE SURE BOAT IS SOLID BEFORE I GOT TOO CRAZY.
FAST AS HELL IF ALL IN GOOD OPERATING CONDITION. 90MPH IN THE RIGHT HANDS.
GOT ANY NUMBERS OFF THAT PROP ? COULD TELL YA SOMETHIN.

[Oldallison]

Prop is a 36 p chopper 3 blade

[Oldallison]

The numbers off the hull is alt20b73m81h

[Elkriver]

Prop is a 36 p chopper 3 blade

Looks like a Cleaver, not a chopper. I would think it's more likely a 26 pitch.

[Oldallison]

The last owner said 36 ......but the only number i see on it is .....48-66128-2b but i my be wrong on a number there hard to read

[RIVERRUMMER 70]

The last owner said 36 ......but the only number i see on it is .....48-66128-2b but i my be wrong on a number there hard to read

THAT b IS A 6 MAKING THE NUMBER 26
STILL 90 MPH @ 8500 RPM. LOL
GOOD CALL ELKRIVER.

[Cp]

It's probably -28 at the end. Mercury 28" cleaver.

[stv1991]

Did you just buy that boat?

[Oldallison]

Ya......... i dont even pick it up till the weekend

[stv1991]

I saw it for sale and was thinking about swinging an offer his way on it. Looks like you beat me to it...

[jmadisonbiii]

Welcome to Scream & Fly! I have a 1980 Allison GT-20 that I restored last year. Looks just like yours, but mine is a yellow side steer. I did a ton of reading and talked to Bill at the Allison factory a few times while re-doing mine. PM me I'll be happy to share any info with you. Great running boat; if you've never had an Allison you will love it.

[Elkriver]

It appears to have a Sportmaster lower unit. That's a good thing.

[doc_texoma]

Love the boat and the seating arrangement is crazy... Old merc's are gorgeous motors... I guess new ones are too!

[Oldallison]

I got this boat in tn. But just moved to mo. So i will not have it at my house for another month or so ........can anyone tell me about what year the merc is i know its has 150 , and offshore stickers on the hood but thats all i could tell from the pics i had a relative go pick it up and and store it till i can make it down there...