1955 Pontiac LS upgrade - Page 3 - Lateral-g Forums

**kwhizz** · #21 03-11-2020, 04:27 PM

The pieces are falling together...…. After getting the Exhaust manifold issue resolved (hopefully)………. The next thing that could have become an issue was the power brake booster positioning...…. Was thinking of changing to a Hydra-Boost to get more room between the Coils and the vacuum booster...… But.... After taking some time to think about it I took the last coil off and the coils and bracket assy fit right on...…. So... I have to add some clearance in the booster mounting bracket and make a offset mount for the last coil...… Just saved Jeff and Judy a lot of $$$$…… And..... Another concern was the positioning of the upper control arms on the Pontiac suspension in relation to the front drive assy...…. I got all the dimensions from Donnie at Frame-up and made a cardboard template of the power steering pump position...…. Bingo.... Looks like a winner...…. (those famous last words)…..LOL.....Tomorrow the steering column will be permanently mounted to the firewall and the cable shifter will be installed in addition to getting the last coil repositioned.....

**waynieZ** · #22 03-11-2020, 11:21 PM

It’s going to fit in nice.

**kwhizz** · #23 03-14-2020, 12:52 PM

So.…… Jeff and Judy decided to go with a Hydra-Boost braking system ….. Good Choice !!!!!...… Ordered...… The exhaust on the drivers side was going to be a problem...… We ordered a set of Holley S-10 manifolds and when they came in.... I test fit them and due to the #605 steering box placement and the actual shape of the manifold it just wasn't going to work......I ended up trying the stock manifold again and noticed that if I ground of a portion of the steering box it would work...… we will be returning the Holley units as this odd combination just didn't work...….Spent the morning today pulling the steering box in and out grinding and fitting.....

Also I received the Hydra-Boost system, and while the person who installed the Swinging pedal assy did a great job....Guess what...…. It mounts with completely bolt pattern..... LOL...…. I removed the old stuff and will be making a new mounting plate and reworking the firewall to suit.....It never ends...…. LOL

**waynieZ** · #24 03-14-2020, 01:23 PM

Ken now that your putting 4 wheel disc brakes you will need to remove the residual valve in the line, Correct?

**kwhizz** · #25 03-15-2020, 04:49 PM

Quote:

Originally Posted by waynieZ

Ken now that your putting 4 wheel disc brakes you will need to remove the residual valve in the line, Correct?

Don't know …….. I need to check that out...… Getting conflicting info....Need to find out from someone a lot smarter than me...LOL

**kwhizz** · #26 03-15-2020, 04:59 PM

Today was a good day...…. No steps back.….LOL..... We are putting on a Holley front drive set-up...….Very well engineered kit..... But..... The hardest thing to do on a LS engine is to change the Harmonic Balancer...… Need I say any more..... Got that changed..... Installed the coils, Plug wires, passenger side exhaust, then installed the Holley system…… Waiting for the new power steering pump to show up for completion……. Here are some pic's from today

dontlifttoshift · #27 03-16-2020, 11:06 AM

Quote:

Originally Posted by waynieZ

Ken now that your putting 4 wheel disc brakes you will need to remove the residual valve in the line, Correct?

Ken stopped in this morning and asked about a Prop valve and I said he would still need that.

If he is changing the rear brakes to disc, then the 10 psi residual valve will have to go.

**waynieZ** · #28 03-16-2020, 03:38 PM

That's what I figured.

**kwhizz** · #29 03-18-2020, 05:55 AM

Got the shortened driveshaft back and installed...…… Took the old firewall bracket and modified it to accept the existing Brake swing pedal assy and the new Hydra-Boost assy........ I also moved the assy 1" further away from the engine...... Had to cut out some of the contoured area of the firewall to get everything to fit correctly.......so I have some sheet metal work to do but it fits perfectly and was worth the effort.......

**kwhizz** · #30 03-19-2020, 09:13 PM

Got the firewall patched and sealed around the Hydra-Boost...….. Got the ECM and Trans modules mounted along with the GM connect and Cruise Fuse panel...…. Waiting for more parts to show up ………. Still waiting for the Rick's Tank assy that was supposed to ship on Jan 29th.......... Time to figure out what A/C system to get that will fit this application also...….