Because a 427 small block gen 1 is easily made with a dart block. I can see the easy confusion.

 

Easy but expensive

 

Much cheaper then a ls7 though.

 

Depends what parts you use for your 427ci. I have slightly more invested in parts and machine work on brand new parts etc. alone before assembly in mine than a complete ready to drop in LS7 for sale at Jegs

 

I dont want to make you feel bad but if you spent over 14k to build your 427 small block, you wayyyyyy over paid. You dont even have very exotic heads on that motor. I could understand if you got 18 degree heads on it. But conventional 23 degree headed motor for 14k?
sheesh.

 

machine work = big bucks, i personally went down that road.

 

I spent over 12k on my 406 sbc. If you buy the American made goodies, it costs coin. World, Callies, Oliver, AFR, Crower, ARP, Cloyes, Titan, Diamond etc. If you buy the Scat/Eagle Chinese crap, then you can pinch the seat everytime you push past 6k rpm and have to worry about when it's gonna break. You get what you pay for IMO.

 

http://www.competitionproducts.com/C...ductinfo/434D/

buy that short block, add 2000-3000 bucks for good heads, and 1500-2000 bucks for oil system, intake, cam , lifters, pushrods, timing chain.

9k total for a kick *** 434 with top quality american parts.

what am I missing?

How fast have any of you guys gone that bash eagle or scat. I personally have gone low 8's in the 1/4 with full eagle stuff for well over three years and tons of full blast nitrous passes. Tons of racers use eagle with no problems. All I get is this hearsay from the vette forum that eagle is crap, when I doubt very many have really ever gone in the 10's or faster with their precious vettes. I see top dollar stuff fail just as much as eagle stuff has. me personally I have never had eagle stuff fail on me. I used for several highly abused race motors pushed to the limits.

 

If anyone is looking for the best bang for the buck big block engines that are BUILT RIGHT with AMERICAN parts, try this guy.....

http://www.vortecproperformance.com/

I have one of his engines and for $8k shipped, carb to pan, you can not beat it.... Mine made 662hp on his dyno, then he shipped it to me and I dynoed it locally where it made 657hp.... It is the real deal....with GM iron oval port heads and a mild hyd roller.... I can't say enough good stuff about this engine...

 

To the guy that told me I paid too much, no one overpaid anything. I get my parts discounted a bit through my buddies shop, If I was going to build a drag race motor I wouldn't spend more than about half what I paid for my 427ci. No one likes to see expensive parts all over the track, heck I would probably go with claimer pistons

Yup Callies crank, AFR 227 heads port matched to the Vic Jr intake by AFR, T&D shaft rockers. Motown block with all five caps billet steel middle three splayed, custom billet steel solid roller and on and on it goes. I don't have to explain myself to anyone it runs perfect. Anyone that says I paid too much I have the bill in front of me, was happy to spend every cent on this motor I had been planning for years. Every price is the same or less than you can get anywhere else. So don't f'in tell me I paid to much I am very happy with my motor and worry about your own motor dynamiting on the first run ( not you jimvette999 )

I have a 600+HP small block that my grandmother could drive through the drive through coffee shop and you drive it around town like ordinary car and when you want just for fun, it will smoke the tires at 50 mph, did that the other night beside 5 series BMW by mistake of course, he turned off at the next light.

I was racing a 383/440 '70 Cuda back in 1979, doesn't interest me anymore. If I want to build a race car I'll build one. Price the CVR Bullet Proof timing cover and CVR chrome starter and those are cheap shiny stuff compared to what's in the motor, so please keep your opinions to yourself and just talk about what you know. BTW I built it in my basement, brought it upstairs on a fridge cart. I picked ever part myself and could not be happier with the results

And the LS7 with 12 degree heads makes a whopping 505HP, I should beat that at the rear wheels before the end of the year with my crappy 23 deg heads. Do you know what the 227's flow ? I wonder how much power I could make with a set of heads with approx. the same valve angle as the LS7 heads, they are called Little Chiefs, I have seen 315cc's flow in excess of 430 cfm. I am sure you've heard of them, so please keep your comments to yourself with regards to me and build yourself an nice racecar and members will be more impressed at what you accomplish rather than pulling down others, I don't need any advice

 

Oh yeah I forgot I sent a brand new 4340 Eagle crank back because it wasn't straight ( bought the Callies crank I wanted in the first place and it was dead on ) and the big end of my my brand new Eagle Stroker rods I was stuck with were egg shaped and had to be resized right out of the box. Do you check these things or just bolt them together ?

Was very ill for 2 months but I'm feeling much better now

Oh almost forgot again, with slicks, skinnies and drag shock 450 to 500HP wlll get the front wheels in the air no problem with a C3

Below is my last motor, it is a $7-8,000 motor not counting a few obvious things that went with it when I sold it like carb, msd ignition etc. This motor is still running today. It was another basement build, a small block 406ci that made 550HP and 510tq and another one that was nice and easy to drive to the grocery store and putt around town. So like I said above keep your comments to yourself with regards to me you might have bitten off more than you can chew

 

One is bigger than the other................................... ......................





350 vs 427

 

MotorHead - while I agree with most of the comments you made, an LS7 makes only slightly less power than what your engine makes right now, and with a cam as aggressive as yours, would easily make over 100hp on your setup.

 

Seems I got under someone's skin. I apologize. You have a very nice motor and pretty valve covers. Have a nice day.

My buddies shop has a few callies cranks that were pretty off too. one in perticular had a chunk of burnt wood imbeded in the counter weight. every brand has its blems.

and actually the wheels up pictures are really my f'ups. they just make good pictures but suck for your 1/4 times. The vette normally only lifts em a inch or two off the ground and sets em back down gently. 1.26 60's results in that. A wheelie is bad for a dragracer. I got a bunch of pictures doing a proper launch but they are boring to look at.

 

Motorhead, I generally agree with what you say. but....
Expensive, name brand parts break, too. I saw a friggin' Sonny Bryant crank in two pieces about a month ago, less than 10 passes old. There went a chunk of coin. We have a member here that broke an Oliver rod in a big-inch build. Buying the best doesn't mean stuff won't break, but it helps IMHO, it helps the most when you hold the loud pedal down and watch the tach pass 6000, then 7000, then 8000...it buys peace of mind as much as anything.

The 505hp is an extremely conservative rating on the LS7. I've watched several 6.2L based engines stroked to 426 with smaller L92 heads and a moderate hydraulic roller click off 625hp dyno pulls, the LS7 with a similar cam is around 675hp. After you spend the coin for Little Chiefs and associated intake and offset lifters, the guy with the LS7 can upgrade to some of the new canted valve heads and still out-power you. Probably cheaper, too.
Best I've seen on an LS7-based build with stock 4.0" stroke and massaged factory heads was 810 hp, the single plane intake was the hold-up at that point, this builder is sure he can get 2hp/cube, N/A.

They AIN'T smallblocks!!!

 

Guys it's the motor I have been wanting to build and planning for a number of years, I am happy with it, it runs like a clock, I don't need anyone telling me anything about it. It is in my garage and I am happy with it. I am going out for spin right now. Let's just leave it like that and always remember there's always someone faster

 

^ no doubt you've built a primo mill. One that hands plenty of bigger inch big blocks and a lot of LS powered rides their butts has to be a lot of fun to drive.

 

Thanks for the kind words

To the OP I hope this discussion helped more than hindered your thread as there is much more two it than just big and small blocks, especially with the advent of big inch small blocks etc.

 

Without stepping into this pile...

I just wanted to add that the 505hp rating for the LS7 is total BS. C6 Z06 Vettes are throwing down 450-460rwhp completely stock.......headers, 3" x pipe with cat delete and the accompanying tune is putting them at 510-520rwhp....sometimes more... Throw a cam/springs in em and 550-575 rwhp is common....That is 700-725 crank HP that will do it for 100k miles...and it's all aluminum to boot....

I'm just sayin...

 

Btw I do think Motorhead has a KILLER small block STREET engine also....NICE quality stuff there. I can't wait to see it go down the track on real tires...