410 Stroker Motor
410 Stroker Motor I have a 97 Z that has pretty much basic bolt ons and a 150 shot, 12 bolt and a built 4l60E, and a E303 cam. So far I have dipped into the 11.20s. But now I have decided to go on a quest for 9s. I was thinking about a 383 or 396 stroker with a bigger fogger system but then I was talking to a guy up at a car show that said he was stroking his Lt1 to a 410. I have never seen this but he has caught my interest and I am thinking about doing this. Has anyone seen this and my biggest concern is with that big of a stroke how much nitrous could it handle. I am also puttin a turbo 400 in there. Any info. on this motor would be great thanks.
TECH Resident
Joined: Jun 2002
Posts: 943
Likes: 2
From: Houston
Originally Posted by 30thZ28
Yeah it would be a fun daily driver but my goal is to go single digits and be able to drive on the weekends for fun.
On The Tree
Joined: Nov 2002
Posts: 183
Likes: 0
From: DE
Problem with the 400+ strokers is the 4" stroke crank and usually lousy rod ratio. you can do a 396,but you would need a short rod (which kills rod ratio) in order to keep the pin out of the ring pack and allow for plenty of meat on top of the piston. The big juiced 396 has been done,so it's not impossible.
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Verdad Gallardo I'm not to sure on the numbers because i have never seen a 410, only 383 and 396. But I am planning on using a big solid roller cam, AFR 227 heads that will be worked over to work with a custom sheet metal intake. I hope to produce 600+ horsepower. If not more remember this will be strictly a track car and maybe be taken out on a nice weekend. But I don't know that is why I am asking you guys.
TECH Resident
Joined: Jun 2002
Posts: 943
Likes: 2
From: Houston
cubic inches doesnt determine streetability, its the cam/compression/timing that determine streetability. The only problem i could see with a 410 is having to buy so many damn sets of rear tires because of the torque 
Problem I see is that to get the bore you are boring the block to the max, we are talking sonic checking to see which side of the bore is thicker and all sorts of extra work, then as stated you need to do odd things with the rods to keep the pin out of the rings. Only reason I see to go that big is so you can tell people you have a 409 but for that to even be cool you need an Impala to put it in. The forged 383 is the way to go at least IMO.
Actually I have built a 409 and it went in a Impala! It ran 12.1@112mph back in 99 or 2000. It was a bitch to build but was a torque monster to get that 4400lb impy going! The problem with them is the clearancing of the rods to the oil pan rail. a 5.850 rod 396 is a good way to go, Ive sprayed 450--500 shot on mine many years ago...
Originally Posted by TwoFast4Lv
Sled Long time no see!
Launching!
Joined: Jan 2004
Posts: 249
Likes: 2
From: sarasota, fl
well, first of all, the rule of thumb with the production block and forced induction, you want to keep the overbore as small as possible to maintain strength, especially with nitrous. besides, the power is in the HEADS......youd be much better off sticking with a quality 383, and taking the extra money you saved and have a set of badass SBC heads converted to fit the lt1.
read this thread for some interesting discussion http://web.camaross.com/forums/showt...hreadid=244544
also, there is a guy on cz28.com with a daily driven LT1 427ci.
block is sleeved, filled, releaved, x-rayed
4.12 bore, 4.0 stroke
11.5:1 compression
small cam - to pass CA smog (i think hotcam, not sure)
438RWHP / 509 RW Ft.#s Tq
the machine shop work cost him an arm and a leg though.
read this thread for some interesting discussion http://web.camaross.com/forums/showt...hreadid=244544
also, there is a guy on cz28.com with a daily driven LT1 427ci.
block is sleeved, filled, releaved, x-rayed
4.12 bore, 4.0 stroke
11.5:1 compression
small cam - to pass CA smog (i think hotcam, not sure)
438RWHP / 509 RW Ft.#s Tq
the machine shop work cost him an arm and a leg though.
Ok I have a lot of thinking to do thank you for your info. But let me ask you this. The amoung of money that is going into this motor is not an issue, so without a budget at all could a 410 be built right and be able to handle a substantial amount of juice?
TECH Enthusiast
Joined: May 2004
Posts: 549
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From: St. Peters, MO
Man that Z aint going nowhere. Its a piece...lol. I would say that a sleeved and filled lt1 at 410ci or 427 would be sweet since it is a heavy convertible. That with some converted SBC gen 1 heads, a solid roller cam and a moderate shot 250ish could push 800plus on the hose. Plus think of the nasty torque curve. Wheelies off the line would be insane. Everyone is saying 383 but why not do something different if your gonna spend some dough. Better yet...a big inch LS6....ie stroked and bored 6.0L block with some awesome heads would be nasty....gives me chills...many options...just go get that check beotch!!! 
Don't worry Jordan the check book will be here soon with no limit, a couple months at most! We will spend a weekend just ordering parts. I was thinking a 427 with that solid roller cam and a custom sheet metal intake should make more power than Grode's, if tuned right, and he went a 9.70 last week on only a 100 shot. And if the block was sleeved and set-up perfectly we should be able to spray quite a bit. Oh well you know we will end up spraying the **** out of it no matter what,LOL.