Aug 7, 2025 · These wires have a straight spark plug boot which is popular for the Cadillac 331, 365 & 390. Also these grey spark plug boots are high temp boots that can withstand 50 …

Apr 7, 2016 · Cadillac V8s have had hydraulics since '36 ... There's more factory hot rod parts floating around for the 331 - aftermarket parts for the 365 - 390 are a lot of $$$. It's hard to …

365 v-8 Cadillac engine. 390 v-8 Cadillac engine.

Cadillac, 1957-1964, 365"-390", Carter-AFB Price: $459.95 Part Number: ND431 Availability: 2-6 Business day lead time to ship

Jun 6, 2025 · Both engines have the same 4" Bore, but as the Stroke is 3 5/8" for the 365, and 3 7/8" for the 390, and as the Rods are different lengths, the Gudgeon Pin should be set at the …

Howards Hydraulic Flat Tappet Camshaft, Cadillac 365-390 Custom.

Find many great new & used options and get the best deals for small cap CADILLAC 390 365 331 1955-1962 BLACK HEI Distributor + CHROME 45K COIL at the best online prices at eBay!

Oct 21, 2021 · I have read extensively on interchange of 331-365-390 parts and conclusion is that it would be no problem putting heads, rockers and intake from a 390 on a 365.

*This kit includes everything you will need to mate your 365 or 390 to a manual transmission. There is no need to buy additional parts when you order this kit!!!

Nov 18, 2025 · The included set of BLACK wires will work on 1955-1962 Cadillac 331, 365 & 390 using the HEI (male tower) distributor that is also included in this listing. These wires have a …