83ttopgt

Does this sounds like a decent combo? I need to buy pistons for the motor anyway, so I will buy them with valve reliefs

I already have the 69 block and I have a set of DOOE heads, also have a z303 cam hanging around (very low miles)

Will be converting the 351 to a roller anyway, with link bars no matter where I end up

I am planning on gasket match/ mild porting job to the heads, with the addition of screw in studs and guide plates.

I am looking into the larger chevy valve thing (a point in the right direction would be ok too.)

Also considering a 393 bottom end with 3.85 crank, 351w rods, and 302 pistons.

May someday upgrade the heads, but I may not. unsure at this time.

what kind of power would the 357 make? and the 393?





Also considering a cleveland head swap, but can only find 4v heads in an open chamber configuration, and not sure what compression ratio I can get away with




I have no money for aftermarket heads right now. I can piecemeal the windsor or cleveland heads as money permits and do alot of the work myself.
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mjr46

not a very good combo at all, expecially for a 393.......but if it's what you have use it, I wouldn't expect stellar numbers from either combo with that h/c/i

83ttopgt

I took some advice from you and a few others, and I am gonna go with a 4v cleveland head swap, 393 stroker, and cam choice will be dictated by the rest of the build at a later date.

How will that combo do for HP? Its probably getting either a blue thunder or trick flow clevor swap intake (single plane) or if the edelbrock one rates well for my combo (dual plane) and its also getting long tube headers

mjr46

most clevors I've seen if built right net around 500 hp

83ttopgt

Thats great!

Just found the track boss and street boss intakes. Seems like decent stuff. Rates well.

83ttopgt

Also, what can you guys tell me about the water cross over relocation kits? Is the need for one dependant on the intake? Or will all swaps end up with one?

The 4 top contenders for intakes are:
New Edelbrock clevor intake
Trick flow track heat for clevor swap
Track boss
street boss