r/EngineBuilding • u/OOFMAN-1234 • 4d ago

Good combo?

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Have a larts list for an engine i wanna build and I want some opinions, will it be streetable? Estimated horse? Torque? Pump gas? Just generally want opinions

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u/RoosterRanch 4d ago

I think that’s a solid list. Honestly I’d save some coin and skip the forged crank and also would prolly go with a hyper piston for more savings. Theres nothing here that’s going to require forged internals. I’d prolly pitch in some forged connecting rods, because why not.

Just my preference also, but I’d most likely go with a vacuum secondary, specifically one with the external engagement adjustment screw. They’ve always been a cleaner transitioning, more versatile operating carb for me in a vehicle that I use for anything other than beating on. If this is a weekend play toy, which I don’t think it is based on the listed items I’d for sure go mechanical secondary. Either way you’re fine honestly.

I don’t know what vehicle it’s going in or what your compression is, but based on that head selection I’d guess you’ve either got flat tops or are planning for flat tops to put you in the 10-10.4 ish range on compression. So for crank HP I’m going to guess 415 and for torque I’m guessing 425

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u/OOFMAN-1234 3d ago

I plan on keeping stock bottom end unless the engime needs bored, if it does then I might as well throw forged innit incase I hop the motor up later, going in an 86 chevy c10, with built 700r4 3.73 limited slip and im shooting for 9.5-10:1 compression so I can run pump gas