302s on 72 340

rigger3006 said

i know its not recommended but its what i have to work with for now, thinking of putting 60cc 302s on wifes 72 340, the 915s i pulled off were 73ccs, she just wants a cruiser for around town, probably nothing above 4500-5000, unless i take it for a spin, ive also got 028 thin head gaskets for it and voodoo 60401 cam, 323s and a stock T|C with 727. dont beat me up too bad on this one!!!!

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'1972' 340/240 HP

Factory Specifications

Piston Type ................. Flat-Top w/Notches
Piston Height .............. .054" {Below Deck}
Head Gasket ............... .036" {Thickness}

Cylinder Head .............. #3418915
Valve Size .................... 1.88" Intake ~ 1.60" Exhaust
Combustion Chamber ..... 73.0 {Factory}

Compression Ratio ......... 8.5 to 1 {Factory Estimate}

'Swap Out'

By swapping on a set of 'stock' #4323302 Cylinder Heads with a Factory
Level of 63.5 {CC's}.

Compression should reach approximately ...... 9.4 to 1

~ Uh Oh Factor ~

Intake Port Size ............. .87" Width x 1.87" Tall
Intake Port Volume ........ 122 CC's