ORD Engine Cross Member

[IRIECHEFDEEZY]

Has anyone installed the Off Road Design engine cross member in a 72 Blazer? I'm working on one now and will eventually go with a BBC engine and am wondering where the new holes need to be drilled into the frame. i have the later model engine "saddles" and they also need holes drilled into the top of the frame. before i go turning the frame into Swiss cheese, I'm wondering who else has done this and do you have any guidance and or measurements to get the valve covers off the firewall.

 

[cheavyk10]

I know @70jimmy installed one on his first gen.

 

[70jimmy]

I can't help you on the valve covers. I had to drill one extra hole on top of the frame on each side. On mine I had to trim the angled part that fit into the c channel of the frame to fit between the upper part of the frame and the lower. But that may have been a "jimmy" thing.

Here is a link from ORD's website with some pics if you haven't seen it.

Big Block Motor Mount and Crossmember Combo Kit for 73-91 GM/Chevy Full-Size

Combination Kit of Competition Style Motor Mounts for 73-87 GM with Big Block High Clearance Engine Crossmember Big Block, 6.2L Diesel and Gen III/IV GM V8 Applications Stiffens the frame, increased crossover/high steer clearance, eliminates weak factory crossmember. Includes competition style...

www.offroaddesign.com

 

[70jimmy]

You also have to drill 1 or 2 holes into the side of the frame to attach it. Very important to leave everything loose until you get the holes drilled and everything lined up.

 

[70jimmy]

The Cherry Bomb

A few weeks prior to BB2022, went to go on an easy trail run and got 5 miles from the house and bang blew a tire. I knew the tires were old and could blow at any time for a while, see pics of hauling multiple spares for BB2021. So I bought some 37 inch milestar patagonia M/T 02's. how do you...

ck5.com

In my build thread page 2 post 23 starts my saga on.putting in the crossmember yours should go much smoother.

Get a 90 degree angle drill tool it was very handy.

 

[IRIECHEFDEEZY]

Thank for all of the help. I’ve also had to trim the corners that went into the frame. I’ll take a look at your thread and try to get mine installed.