NHRATA01

iTrader: (10)

Thinking about building some bigger cubes in the near future, well, probably next winter. From Scoggins, it's only about 300 bucks more for a 414 LS2 shortblock vs. a 402. I'm not looking for a single digit world-beater, just for some more fun on the street and 2-3 trips per year at the track. After 10 years of a 346 I'm ready for some more all-motor torque. Have a 100 shot I'd probably transfer over. No plans for more spray or boost, which from what I've learned a 402 would then be preferred. Car only gets about 3-5k miles on it per year, so while I don't want the motor to self destruct in a year, I'm not that concerned about getting 100K miles out of it either. So those being my goals, is there any drawback to a 414?

Thought about a 408 iron but I don't mind paying a bit more for the alloy.

2010ss1

bigger is always better, not sure what the bore and stroke of the 414 is but the 402 or as it should be built the 403 is a venerable shortblock. If you want bigger then why not an LS3 416, the block cost is 1450 compared to the 1150 of the LS2 block. Then yo could even do a 427.

Gregory

iTrader: (4)

With the 4.060 bore of the LS3 you can use a larger valve without flow issues.

ad53030

Might as well just go with the 7.0L. Old school 427 badges would be cool...

1lejohn

iTrader: (9)

414's to 416's are all good. Iron blocks are better for FI.

briancb1

It might be worth it to get an Iron 6.0L gen III engine. The LS2/LS3 blocks are Gen IV and I know the knock sensors and ECU are different, not sure if its expensive to convert but just thought I would bring that up. The Iron blocks are solid.

Cunningham

iTrader: (1)

People put ls2/ls3's in fbodies all the time.
OP has no plans for FI so no need for an iron block there.

rggbly

iTrader: (22)

iron can be had cheaper but with the application of the op it seems this is not the problem. the 4.060 bore is what the 414 has with a 4.00 inch stroke. the 402 is stock bore (or very close) with a 4.00 inch stroke. basically with the 414 you just have the same set up, but bored .060 over. With a 100 shot of nitrous and no plans to go higher i would definately say go 414ci. Other guys will vouch that it will go a long way if it's built right

NHRATA01

iTrader: (10)

Excellent, thanks for the input!

NHRATA01

iTrader: (10)

It's not too bad, there are a few wiring harnesses that need to be extended such as the knock sensors and cam position sensor I believe, then just a matter of ordering the crank and cam reluctors to match the LS1 ecu. A couple other odds and ends like the windage tray, things I'll shore up and get in order well in time for the swap.

I did think of the simplicity and cost of the iron block swap, but like I said I'd rather keep the 100lbs off. At this rate I won't build another motor for 10 more years so I'd like to do it right the first time rather then regret cheaping out to save a few bucks (within reason).

SOMbitch

iTrader: (8)

^^^^ you'll need a valley cover and TC cover too...

What got me was the upgrades to get the most out of it that many people overlook like FTP 104 lid, 100mm MAF, getting my 90 FAST ported, 42lb/hr. injectors and a Wahlbro pump....

Gaz05

Go with the bigger cubes... This could be more or less depending on your combo but, if you make around 1.5hp per cube, 402 to 414 is 12 cubes, thats 18hp for nothing.. should do about 1.35ft/lbs per cube, a gain of 16ft/lbs, it all helps.

MAD DOG 20/20

There is no replacement for displacement...