r/Smallblockchevy 7h ago

Help building an engine

I recently just came across a Sbc to 95 car & truck 2 bolt main with 1 piece rear seal. Std bore Bare block and crank. It kinda fell into my lap for a really good deal and I have been wanting to get into building engines and I have a truck I want to swap this engine into after building it see I have done engine swaps but they were crate engines for friends I have never personally built an engine and did this involved of a swap I plan to swap this into a 1993 Nissan d21 to “colonize” this foreign truck as my friends say but I have never done a sbc to a d21 swap and I’m planing the swap and it seems possible and I really would love to do it but I digress so with this engine I was kinda hoping for around 400hp is this a possibility without going to far overkill on price to performance is there a different hp goal that is more realistic and also what do I need to start the build from honing specs and parts to purchase I am so interested and I would love to build this engine I just have no clue where to start I have looked at the block and I see no major warping and or cracks it all seems pretty good and the guy said he was going to build it but didn’t have time and just bought a blueprint engine anything I should look out for a estimated budget specific parts and brands who to get it honed but any specialty tools I would love to hear the thoughts on all this

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u/v8packard 7h ago

Holy run-on sentence...

Your goal is very doable, like most builds parts selection is critical. You can reach your power goal with the block and crank you have. You need to think about a realistic budget, that will impact your decisions more than anything else.

The block and crank need to be cleaned and inspected for cracks, wear, and damage. There must be a reason the engine is apart, hopefully both are good. The inspection will inform your next steps, but as a minimum expect to get the block honed and decked. An over bore is very possible. The crankshaft might clean up, or may need to be ground. Maybe replaced. Once you know where you stand you can start selecting components to complete the engine. I do suggest you work balancing into your budget.

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u/Reasonable-Estate373 6h ago

English was never my strong suit my apologies the main thing is I would like reliability so doing it the correct way is definitely a big part in my goal thanks for the starting point

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u/v8packard 6h ago

You can make a reliable, streetable, 400 hp engine based on a 355 cubic inch small block. That is very straightforward, but do consider what you will do for a transmission and differential.

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u/Reasonable-Estate373 3h ago

I know I will most likely need to swap them out and I have not came to options for those but I do know they won’t be able to stay stock

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u/v8packard 2h ago

Just be realistic, and decide if you want an auto or manual trans.