Post your Oldschool ride!

[phragle]

hrm..thats more than booth my motors put together..from what I have heard, the gm truck motors arent that difficult to marinize to use as a base?? then a complete rebuilt with a 383 kit??

[Biggus]

Originally Posted by yikes

Haven't seen a solid number. Depending on internal parts 400 to 425 is not unreasonable on pump gas.

I think that ZZ383 crate motor makes 425 hp, 450 ft lbs/tq. My buddy has about 150 hrs on his. So far zero problems.

[Insane Wayne]

My mirage had the original Mercruiser Tempest 300HP engine with 650 hours on it. It ran fine but the oil pressure was getting low, and I wanted more power. I did a lot of research and even talked to Mercruiser tech dept on what to do. Mercruiser recommended upgrading to vortec type heads, so I ended up with a vortec head style 383 crate engine.
I found it a wash ($$ wise) as to rebuild my engine or get another one already done, so I just got another engine. It is a 4 bolt with Eagle crank, hyper pistons (10:1), new big valve heads, steel roller tip rockers, gear drive, milodon pan, ARP hardware, and a performer rpm manifold with 750 marine carb. I think the cam is around 525 lift. I got the engine with a new balancer and flywheel as the 383 engines have a different balance than our stock 350s have. I had to get new valve covers also as the vortec heads use the centerbolt style covers (and have a different intake bolt pattern).
I only have about 3 hours on the engine, but I tell you WOW. I gained about 600 RPM. I have a new prop waiting to be tried out when weather permits.
I'm very happy with the power of the new engine, way more torque.

Wayne

[blown formula]

1988 Sonic 30SS- complete rerig 2005/6.....& still in progress with new power/again! Drives & rides great.

1st pic- original boat( see attachment below pics)
2nd- as repainted by Too Old/Trick
3rd- as updated/rerig 2005/6

[spectras only]

1972 24.6' Spectra V-drive , LS-6


1976 Spectra 20 ca 1982 >

1984>

ca 1996 >


1990 Mirage 257 , twin 377's

[Westcoast]

My 1980 SCARAB S-Type
(2) 454/TRS

[formula 382 sr-1]

1987 272 sr-1 formula, 383 small blocks 425 hp, runs great 69.8 on gps. moving up to 1996 382 formula hp 500's

[Too Old]

Originally Posted by motownjim

sorry, its a 1977 mistress

Wow! It sure looks well preserved.

Beautiful boat.

[risky]

Little late on this thread here is mine: 1986 monti christi redone in 02 and recently added to the oso classifieds.

[Sacred Ground]

1986 Apache Scout-for sale on O.S.O.