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395ci LS Build

 
Old 05-14-2019, 11:50 AM
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Default 395ci LS Build

Hi everybody I am new here so thanks for having me. I am here because I am starting a new project and i am wanting to build a 395ci iron block. I got this from the TSP website so it seems like a no brainier with all the sizes listed for you. Has anyone built this engine before? 3.903" bore, 4.125" stroke, 6.125" rods? Any thoughts or suggestions are welcome.
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Old 05-14-2019, 12:27 PM
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What are you going to do with it? Which vehicle is it going into? Looks interesting!
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Old 05-14-2019, 03:11 PM
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If the choice is spending ~$4,400 to $4,600 on a TSP 395 with a 3.903 bore or $4,700 to $5,000 on a TSP 408 with a 4.030 bore, I'm going to save the extra $300 to $800 dollars and go with the 4 inch+ bore every time. Bigger tends to breath better in most cases, easier to fit bigger valves etc, more cubes given same stroke crank etc.

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Old 05-14-2019, 03:47 PM
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Originally Posted by 99 Black Bird T/A View Post
If the choice is spending ~$4,400 to $4,600 on a TSP 395 with a 3.903 bore or $4,700 to $5,000 on a TSP 408 with a 4.030 bore, I'm going to save the extra $300 to $800 dollars and go with the 4 inch+ bore every time. Bigger tends to breath better in most cases, easier to fit bigger valves etc, more cubes given same stroke crank etc.
Agreed. Iíll go with bigger bore every chance I get, just for the head choices.
Monkey, you will likely be better off going with a supercharger or turbo, after the dust settles.
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Old 05-14-2019, 05:09 PM
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Originally Posted by Che70velle View Post
Agreed. Iíll go with bigger bore every chance I get, just for the head choices.
Monkey, you will likely be better off going with a supercharger or turbo, after the dust settles.
Scott your right about the turbo or supercharger being the easier choice. And i thought about going that way. Leave the bottom end stock, new heads, intake and fuel system with a ProCharger. Probably about the same cost in the end.
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Old 05-14-2019, 05:47 PM
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All good advice above, plus I'd rather run a 4" crank over a 4.125 in a GM block. 408 sounds better in all directions.

And on the blower being a similar cost, it should be, but you'll have a lot more power and if you pop the bottom end you can grab another used bottom end cheap and slap it in. I've always loved beating on stock bottom ends for that reason.
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Old 05-14-2019, 05:49 PM
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Originally Posted by 00pooterSS View Post
All good advice above, plus I'd rather run a 4" crank over a 4.125 in a GM block. 408 sounds better in all directions.
I approve this message.
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Old 05-14-2019, 06:46 PM
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Bore > stroke
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Old 05-14-2019, 07:08 PM
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You could build a 396 with 4.185 boar and 3.622 stroke. Would rape your all stroke 395 and then steal is lunch money
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Old 05-14-2019, 08:25 PM
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Originally Posted by Darth_V8r View Post
You could build a 396 with 4.185 boar and 3.622 stroke. Would rape your all stroke 395 and then steal is lunch money
This sounds fun!!
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Old 05-14-2019, 09:35 PM
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I had a 5.7 based 395ci (3.915 x 4.100) with a 6.100 rod. It made 500/500 w/243's and lasted 20k miles but if I could do that combo over again I'd just do a 4" bore motor......which I later did with a 408 & cathedrals and made 565rwhp. I've got a few old build posts in the dyno or Gen III or IV section, just search my name
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Old 05-14-2019, 09:48 PM
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Originally Posted by Darth_V8r View Post
You could build a 396 with 4.185 boar and 3.622 stroke. Would rape your all stroke 395 and then steal is lunch money
What a great plan!
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Old 05-14-2019, 11:30 PM
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Originally Posted by Darth_V8r View Post
You could build a 396 with 4.185 boar and 3.622 stroke. Would rape your all stroke 395 and then steal is lunch money
Originally Posted by NAVYBLUE210 View Post
What a great plan!

This...

(And not just because I like the raping and stolen lunch money part...)
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Old 05-15-2019, 03:03 PM
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Originally Posted by cdubbzz View Post
I had a 5.7 based 395ci (3.915 x 4.100) with a 6.100 rod. It made 500/500 w/243's and lasted 20k miles but if I could do that combo over again I'd just do a 4" bore motor......which I later did with a 408 & cathedrals and made 565rwhp. I've got a few old build posts in the dyno or Gen III or IV section, just search my name
Thank you . I will check those out.
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