Additional Comparisons of US V8 Engines

AMC 327 XRV8 Race Parts Rambler V8 Specifications AMC Gremlin Rambler Marlin pictures Cutaway View of V8 Engines V8 Cutaways P2 XRV8 Gremlin Project AMC 327 XRV8 picture page

I finally found a cutaway view of the Chevrolet 'mouse' V8 engine, after over twelve years of searching the Internet, so I decided to add a second page of cutaway views.

'55 Chevrolet V8: 575 lbs. -head bolts and pressed in rocker studs penetrate water jacket, the two lifter galleries feed off the rear cam bearing groove along with the rear main: somewhat prioritized but not quite. It does appear that the 'short' style Chevy small block valve cover stamping may help oil the rocker tips by oil squirt deflection. Oil pump pickup tube needs a bolted tab to hold it on securely. Chevrolet did make internally balanced forged piston forged steel crank and rod versions of this engine in a variety of displacements which indeed makes the task of building one into a proper racing engine much easier if so equipped. Another design feature is seen by comparing total piston length to to total cylinder wall length of this engine to these other cut away veiws (note cylinder wall length is only 1/3rd longer than piston length) SBC's low deck/short stroke/big bore design was rather unique and it may be argued that this design peaked with '69 302 Z28 engine showing superb high rpm capability...

'66 290-401 AMC V8, 540 lbs. (generic weight) -Scan taken from '71 AMC Technical Service Manual, appears to be '68-'69 "AMX 390"

 

 

 

 

 

 

Old school Hi-Tech! Cord V8 mounted behind it's front wheel drive transmission, propeller type airplane engine style. Interesting valve train arrangement looks to be evolutionary missing link from flathead to overhead valve design architecture, but also to have 'V' cylinder layout with minimum width as inline eights were the norm at that time. (Interesting to check out 'Miller' inline 8 racing engine history... Duesenburg had double overhead cam inline 8 engine? Nash flathead inline 8 had 'twin spark' ignition; 16 spark plug distributor cap? Packard's 327 CID inline 8s weigh over 800 lbs?... 9 main bearing crank alone is like 150+ lbs?... but one of the smoothest running engines I've ever witnessed in person = truly can balance quarter on radiator cap!...)

Lycoming V8, for Cord

'32 Lycoming 392 cid V12 *the more I study spark engine design theory, the better this engine design begins to look. Crankshaft is designed for perfect balance, 'old' combustion chamber shape is 'new' diesel 'high tech'! Valve train appears to be extremely durable -note 'valve cover' -Ford 'Windsor' engines appear to have similar wrist pin oil spurt from con rod big end...

Pontiac V8; invented (?) 'modern' stamped steel rocker arms which could be manufactured by machines similar to high speed cookie cutters, instead of a much slower manufacturing process of casting/forging and machining 'conventional' shaft mounted rocker arm system... studs used to make solid lifter adjustment instead of dedicated pushrod adjusters etc = great innovation to enable higher speed manufacturing capacity... this pic shows Pontiac's 'early style' reverse flow cooling system...

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