SR20DET FITMENT
January 27, 2015
by: jovial_cynic
by: jovial_cynic
![](/projects/510/images/20130318_SR20.jpg)
The first part of getting an SR20DET into a 1971 Datsun 510 is (aside from actually acquiring one) is figuring out how to get the engine into the engine bay. It wasn't meant to be in there.
![](/projects/510/images/20130218_crossmember_01.jpg)
Problem #1 is that the stock 510 crossmember is backwards relative to the oil sump on the SR20 engine.
![](/projects/510/images/20130218_crossmember_02.jpg)
Cutting and flipping is a common option. I decided to cut and reinforce with some 1" square tubing I had sitting around. I don't know why.
![](/projects/510/images/20130218_crossmember_03.jpg)
Here you can see the crossmember attached to the car, but if you look closely at the left side motor mount, you can see something wrong.
![](/projects/510/images/20130218_mountProblem.jpg)
The stock mounts don't line up with the SR20, so some modifications were necessary.
![](/projects/510/images/20130218_fixedMount.jpg)
Specifically, I had to add some length to both motormounts to get it to stand off from the crossmember enough to fit. I also had to make sure that this didn't make the engine sit too tall to close the hood. We're good.
![](/projects/510/images/20130218_SR20Fits.jpg)
And here you can see it fitting up just nicely.