H7187802 A Cadillac Eldorado

04/02/2026

Next year is overhaul time for the beast.

I figure 60 years is long enough without rebopping the transaxle.
The final drive cover is rusting away so I will need to find a new one - it is the planetary type not the conventional type diff.

04/18/2025

Still kicking

09/26/2018

General Motors is moving its Cadillac headquarters back to Detroit, nearly four years after relocating the luxury brand’s home base to New York City.

05/12/2017

FYI
http://www.ebay.com/itm/1967-Cadillac-Eldorado-2dr-/252932452204

1967 Cadillac Eldorado 2dr | eBay Motors, Cars & Trucks, Cadillac | eBay!

01/26/2017

With a build date of Week 4 of January 1967, the Eldorado and I are celebrating our 50th year. Thanks for fanning the page.

~Mike

04/06/2016

The Cadillac 429 had several one-model-year-only improvements for 1967 despite being slated for replacement by the 472 cubic inch monstrosity being tooled up for its 1968 debut. For 67 only, new stamped steel rocker arms were employed to replace the cast iron rockers seen on every OHV engine made previously, and they were mounted to pedestals which were net-built onto the head using one head bolt per pair of rockers. A powdered metal pedestal held each pair of rockers instead of a shaft holding eight at a time. Also eliminated was the oiling regimen to the head, which originally consisted of an oil pressure passage machined into block, head and gasket to put pressurized oil into an upper galley to service the rocker shafts. For one year only, the galleys were completely blocked off by the pedestals, and all valvetrain oiling came from the lifters inside these hollow pushrods.

Following the lead of most GM-designed OHV engines of the 60s, the 429 now had a modern oiling circuit, albeit for only that year. The stamped rockers continued to be used for the larger engines, but the 8 cylinder head mounting bolts for the rockers, each one half inch shorter than corresponding bolts found in older V8s, are the most difficult to find because of their small hex head and 13/32 x 16 thread size.

01/27/2016

Happy Birthday Eldo.
Build date 4/4-01-1967 49 years and the big 50 will begin with a bang!

10/11/2015

The Carburetor: Rochester Products 7027235
A Vacuum-secondary 4MV model of the now-venerated Quadrajet is installed on top of the Eldorado's engine. A manifold mounted thermostat operates the choke, and after warming up all four venturis are available to supply fuel mixture for the entire operating range from 400 to 5500 rpm. Fuel is introduced for idle through adjustable jets on the front, main throttle response is metered from the front venturis, and additional air and fuel capacity for heavy loads are metered by the two rear venturis past the larger pair of throttle plates. Total flow for these units maxes out at 750 cubic feet per minute. Even a perfectly efficient 429ci engine only requires 621 cubic feet per minute at max flow, so there is plenty of capacity in this device.

08/05/2015

The Steering Gearbox
Saginaw made a Variable Ratio steering gearbox that was so good they sold it to both Cadillac and Lincoln. The VS gear made just for the Eldorado's FWD debut, employing a custom 16.3:1 overall ratio built into its recirculating ball driven sector shaft design, was a refinement used afterward for the hotblooded Chevrolet Camaro from 1968 to 1976!

The original ratio cannot be reproduced by a remanufacturer, which will supply an inferior unit to replace one unless supplied with the exact original part to rebuild.

08/04/2015

The stage was set in 1967 for the front wheel drive revolution for Cadillac Motors. The 425 series transaxle had a year head start under the hood of Oldsmobile's Toronado, mated to their potent big block V8. But there was a serious problem.

Hydramatic's transaxle was designed to fit the Olds engine. A completely different casting for the new transaxle's bell housing was out of the question. So Cadillac had to shoehorn the physically more compact 429 into the El Dorado with the FWD drivetrain via a one-off cast aluminum adapter. An equal thickness iron crankshaft spacer and extra long mounting bolts made for an elegant fix, and paved the way for 1968 and the revolutionary Cadillac 472 and 500 inch monsters that followed.