Hot Rods XO/PP Bonneville project

Thanks for the education. I play with 409's so this is new to me.

 

Preparing to fab up the carb linkages

 

How I've missed this thread/ build I don't know but I must say this. You Gentlemen are impressive.

 

Linkage coming together

 

48s or 58s?

 

They're 55s.

 

Needs a pair of Cherry Bombs. Hehe.

 

It looks like a trophy, sitting on the desk.

 

It is, kind of.

 

I didn't see a blower or turbo inlet - SO what are the spring s and burst panel / door for ? Also what is the advantage to bushing the lifter bore down to use the y block lifters ? Wider foot so a more aggressive ramp / or take advantage of the cam profile you have ?
Again impressive.

 

You may have noticed the top plate on the intake is removable. The burst panel is for potential future supercharging – we can just swap out the top plate. And yes, the y-block lifters give a wider foot for more aggressive cam profiles.

 

Blowers for everything. And I’ve never seen a case where it wasn’t for the better. I drove all the way across the country to get mine back

 

Thinking about the upcoming Holiday
Season. I wish to express my/our
Thanks to all the many friends we have made along the way on these Land Speed Racing journey. There are way to many to list but I haven't forgotten a single one of you. I am truly blessed. Thank you all for being a part of our journey. May you all be blessed in the coming Holidays.
John Mullen and Team 640.

 

Here are a few photos of John Decking the block today. 15:1, here we come!

 

Ok GMC 302 guys
Do any of you have a sorce for the freez plugs used on the 302 online six.
Part numbers would be helpful.
Thanks

 

You should be able to measure them and buy them individually. That's what I did on my 270. Rock Auto , Summit etc.

I'm not sure what's going on with this engine. Using the core plug holes for extra coolant flow?

 

I suggest brass. It is disconcerting to find a leaking corrroded steel plug at the race track.
BTDT, more than once.

 

Measure and see if it corresponds to a NPT pipe size, tap it and install square or socket pipe plugs. I have screwed cast iron plugs in SBC decks before decking.

 

Would there be any advantage to running with the tailgate down?

 

Mythbusters episode says NO.

 

Putting the final touches to the inside of the block with Glyptal paint sealing up the pores in the cast iron block

 

Fabed up a water pump adapter to supply water thrue the side of the block
Using a SBC electric unit

 

More photos tomorrow of the water pump

 

Pump is installed for final fitting

 

Now that is "outside the box thinking", and I'M digging it!

 

Many GMC’s at Bonneville have used this style system when they have a crossflow head. The Meziere pumps today are way more efficient along with many others than we used from JABSCO. I’ve used 2 or 3 of the expansion holes and used various sized orifaces to get the coolant flow correct. We didn’t use much dyno time to perfect because of running fuel so it was done mostly on the fly with exhaust temp. John is doing an excellent job with his engine and I’m sure the results will show it.

 

On behalf of team 640 I want to wish everyone a merry Christmas and a happy and prosperous new year.
Please remember the reason for the season.

 

Ditto!

 

The day after Christmas begins the final assembly of the 302 GMC. The crank is in and torqued to 110 pound feet the rear seal was tight when installed but has loosend up with rotation of the crank assemble. The assembly lube is very thick and sticky when it's cold lol

 

Like, groovy man.