Need some advice on my first LS shortblock
First, reply knowing that this is NOT a 1,000 HP race car build. I had a blower, but am now going back n/a...with a budget stroker. This will be primarily a stout driver/road trip car. Not looking to burn up the track with this car anymore....may do a few passes or a track day just to benchmark, but that's it. Thought about a baby shot later down the road (less than 150-200), but that depends on what I put together now....but I know I'll always have that itch. Lol.
So, here goes...
The ever present...416 or 427 debate. No FI, so why not 427? Decided on a 4.070 bore, so not worried about the cylinder walls as much...but am concerned with the long stroke and losing ring seal. Any advice?
-Callies/Lunati/K1/Scat/Eagle? In my SBC days, everybody seemed to run Scat or Eagle. In the LS world, Callie's seems like the go-to. Lunati and K1 seem to have some nice LS pieces too.
Some shops..TSP and Livernois for example, have their own budget crank and rods...are they any good? Remember...baby shot later on, maybe...unless I can get enough out of it to be happy on all motor.
-Tool steel wrist pins...do I really need them at my level?
-Coated bearings/skirts...again, do I really need them at my level?
-Balancing....should I have the rotating assembly balanced from the vendor? Or at my machine shop with the block? Same price either way.
-Head gaskets...thinner now to bump CR slightly? Would limit NO2 useage in the future, but if the n/a numbers are good enough I wouldn't even bother and just turn my attentions and future budget elsewhere on the drive train.
That's all for now...I'm sure I'll think of something else though. Lol.
Thanks for any info advice.
If my calculation is correct, a 4.100 stroke/4.070 bore would take it close to 427cid.
First, reply knowing that this is NOT a 1,000 HP race car build. I had a blower, but am now going back n/a...with a budget stroker. This will be primarily a stout driver/road trip car. Not looking to burn up the track with this car anymore....may do a few passes or a track day just to benchmark, but that's it. Thought about a baby shot later down the road (less than 150-200), but that depends on what I put together now....but I know I'll always have that itch. Lol.
So, here goes...
The ever present...416 or 427 debate. No FI, so why not 427? Decided on a 4.070 bore, so not worried about the cylinder walls as much...but am concerned with the long stroke and losing ring seal. Any advice?
Go with a 416 with the 4.000 crank. You won't miss the 11 cubes and your motor will have better ring seal.
-Callies/Lunati/K1/Scat/Eagle? In my SBC days, everybody seemed to run Scat or Eagle. In the LS world, Callie's seems like the go-to. Lunati and K1 seem to have some nice LS pieces too.
Some shops..TSP and Livernois for example, have their own budget crank and rods...are they any good? Remember...baby shot later on, maybe...unless I can get enough out of it to be happy on all motor.
If you are going to throw a shot on it then again, stay with the 416 setup
-Tool steel wrist pins...do I really need them at my level?
Nah they aren't needed
-Coated bearings/skirts...again, do I really need them at my level?
Nah they aren't needed either.
-Balancing....should I have the rotating assembly balanced from the vendor? Or at my machine shop with the block? Same price either way.
I would just let whoever you buy it from just balance it before you get it
-Head gaskets...thinner now to bump CR slightly? Would limit NO2 useage in the future, but if the n/a numbers are good enough I wouldn't even bother and just turn my attentions and future budget elsewhere on the drive train.
I would go with a .040 gasket that way your compression will be 11.3-4 with the -3 cc L92 pistons TSP or most manufacturers have. That compression will still be fine for nitrous.
That's all for now...I'm sure I'll think of something else though. Lol.
Thanks for any info advice.

I figure I'm just going to stick with the 416 route, especially since I'm keeping my stock ported heads/intake.
Still debating on what the bottom end should be...house TSP stuff, Callies, or Lunati.
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sleeve lifter bore
hot tank/clean block
standard stroker machine work, bore/hone, new bearings pressed, etc...
or just get a short block and core mine?
sleeve lifter bore=350 to 450
hot tank/clean block= 100 to 125
standard stroker machine work, bore/hone, new bearings pressed, etc...=600 to 700
And don't forget you have to get it Balanced.
If I can core my short block, a new one is the way I'd go.

