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GM V6 datsun roadster

Posted: Mon May 20, 2019 11:42 pm
by Leadpaw
A friend had a 1968 roadster frame rotting in his backyard. He didnt even know what it was, and I nabbed it for free. Decided to mount a 3.4 liter 60 degree v6 on it from a pontiac aztek and a t5 transmission from a camaro. Had to notch the front K member and mid X member but it worked pretty well. Building headers is definitely going to be the biggest challenge here.
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Re: GM V6 datsun roadster

Posted: Tue May 21, 2019 1:17 am
by Alvin
Alvin!

Here is Marshall's 3.4 GM V.6 install:
viewtopic.php?t=12188

He u-jointed the steering shaft and made custom headers (albeit) side-exit but it's tidy:
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Re: GM V6 datsun roadster

Posted: Wed Jun 12, 2019 12:03 am
by Leadpaw
Awesome and inspiring to see another person has successfully attempted this conversion.I made it a goal to have a single exhaust, make it take the stock route through the X frame and clear the stock steering shaft. I compromised flow characteristics for compact design and just about barely cleared the stock steer shaft location. Lucky the oil pan has a notch big enough to take a 2in crossover tube from the right bank to the left side of the car.
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Re: GM V6 datsun roadster

Posted: Sun Sep 01, 2019 7:16 pm
by gnoplos
Interested in following this build. Just read through this build http://www.mildevco.net/chevypowereddatsuns/ last night.

Re: GM V6 datsun roadster

Posted: Sun Sep 01, 2019 7:45 pm
by Gregs672000
gnoplos wrote: Sun Sep 01, 2019 7:16 pm Interested in following this build. Just read through this build http://www.mildevco.net/chevypowereddatsuns/ last night.
I forgot all about that car...

Re: GM V6 datsun roadster

Posted: Wed Sep 25, 2019 11:31 pm
by Leadpaw
Test fitted the engine on the cars old chassis. Hood clearance, header clearance look good. The transmission tunnel needed some minor trimming. Time to dissassemble the whole car.
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Also added some larger exhaust cutouts on the new frames X member
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Re: GM V6 datsun roadster

Posted: Wed Sep 25, 2019 11:45 pm
by Alvin
great update!
What color will the body be?
I really dig the frame color

Re: GM V6 datsun roadster

Posted: Wed Sep 25, 2019 11:54 pm
by Leadpaw
Alvin wrote: Wed Sep 25, 2019 11:45 pm great update!
What color will the body be?
I really dig the frame color
I kind of love the patina the car has gotten and will be keeping it the same exterior wise.
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Re: GM V6 datsun roadster

Posted: Thu Sep 26, 2019 12:46 am
by Alvin
Leadpaw wrote: Wed Sep 25, 2019 11:54 pm
Alvin wrote: Wed Sep 25, 2019 11:45 pm great update!
What color will the body be?
I really dig the frame color
I kind of love the patina the car has gotten and will be keeping it the same exterior wise.

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Sleeper!

Re: GM V6 datsun roadster

Posted: Thu Sep 26, 2019 5:47 am
by notoptoy
Definitely a sleeper, you appear to be doing some top quality work- looking good!

Re: GM V6 datsun roadster

Posted: Thu Sep 26, 2019 11:04 am
by 2mAn
Love everything about this

Re: GM V6 datsun roadster

Posted: Fri Sep 27, 2019 2:35 am
by gnoplos
I like your solution for the exhaust cut outs. What size pipe will you be using?

Re: GM V6 datsun roadster

Posted: Fri Sep 27, 2019 2:00 pm
by Leadpaw
going with 2 1/4 or 2 1/2 in exhaust tube. Not looking for huge power numbers

Re: GM V6 datsun roadster

Posted: Fri Sep 27, 2019 5:56 pm
by S Allen
I really like the patina on the car. Looks like a car Columbo would be cruising in. Any one remember Columbo? 8)

Steve

Re: GM V6 datsun roadster

Posted: Fri Sep 27, 2019 6:12 pm
by garth
S Allen wrote: Fri Sep 27, 2019 5:56 pm I really like the patina on the car. Looks like a car Columbo would be cruising in. Any one remember Columbo? 8)

Steve
Ditto! Well done.

The world needs more roadsters like this one on the streets! And the guys and gals that get them there!


I remember watching Columbo. It was about the same time I was driving my first roadster.