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Old 09-24-2011, 07:20 AM
StealthBird StealthBird is offline
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Default Re: 1973 SD455 Formula for sale on Ebay!

Beautiful car! [img]<<GRAEMLIN_URL>>/smile.gif[/img]

I'd have to correct him on something in his ad though. He has the features of the SD-455 as:

Reinforced Main Bearing Webs
Four Bolt Iron Bearing Caps
Forged Rods
Forged Aluminum Pistons
Super Highlift Camshaft
Round Port Heads that were a &quot;Work of Art&quot;
Provisions for a Dry Sump Oil System

All true, except for the &quot;Super Highlift Camshaft&quot;. The SD-455 used a .407 lift cam, 301/313 duration, necessary for strict 1973 emission regulations. With the original 041 camshaft (.470 lift, 308/320) that the engine was designed for, the SD-455 cars ran mid-13's, even with their pathetic 8.4 to 1 compression ratio, horrendous EGR intake manifold, and strangulating exhaust system.

[img]<<GRAEMLIN_URL>>/beers.gif[/img]
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