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#1 |
Lemme show you something!!
Join Date: Apr 2007
Location: St.Helens, OR.
Posts: 876
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I want one!!!!
I bet this thing is a fricken monster! How cool would it be to slap some "four-two-seven" badges on the sides of one of our trucks.....especially if it looked like a ratty-a$$ beater like mine! Ohhhh, if I could somehow crap a pound of 50's, I'd have one.
Yes my peeps- that be an Aluminum Block and heads! From what I read it uses the same tooling as the orginal ZL-1, which as you know was arguably the most bad-a$$-enest motor to ever come out of Detroit. Somebody get me a bucket.....I'm starting to drool all over the floor.
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'67 CST-10 LWB ("Crusty") SOLD '67 GMC SWB ("Murdock") 2000 K1500 Suburban ("Betty") '95 BMW 325i ("Joy") |
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#2 |
Registered User
Join Date: Feb 2007
Location: (Cloverdale) Surrey BC Canada
Posts: 1,566
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Re: I want one!!!!
id want one too but for that kinda change id pass
you can get a 502 with more power for less but i guess since its an anniversary edition still a sweet motor ![]()
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Travis
travis_moffatt@hotmail.com ![]() 1969 Chevrolet C-10 LWB, 350c.i., TH350, In Pieces. 1991 GMC Sonoma, IROCS s10 grill 1963 Ford Galaxie 351/C4 |
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#3 |
Registered User
Join Date: May 2007
Location: Moore, Oklahoma
Posts: 2,396
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Re: I want one!!!!
Thats a sweet motor --- but you know a 427 is just a stroked 396 right? You could probably build a pretty good one for 3k. (although, not an all aluminum one -- but still enough to justify the crossed flags 427 badges on the sides if u want)
"427" is a symbolic engine size from the mid 60's , much like "426" Hemi, 440, 428, etc. etc. I'll bet that motor is a mean bastard for its size , but Chevy now makes 502's and 572's.
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Are you retired too? Nonsense! I'm in my prime Last edited by streetstar; 03-20-2008 at 09:13 AM. |
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#4 |
Registered User
Join Date: Apr 2007
Location: Kelso, WA
Posts: 363
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Re: I want one!!!!
My next project is gonna somehow involve a 6.6L Duramax and a pretty sic '71...
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1972 K10 4" lift, 35’s, 383 stroker, 700r4, current project. 1971 C10 3"/5" static drop, 355/350. "La Bamba.” The current daily driver. |
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#5 | |
Green club
Join Date: May 2002
Location: Central CA
Posts: 1,059
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Re: I want one!!!!
Quote:
A 427 has a legendary sound to it when you say it though....
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71 short/fleet ECE 4/6 drop, LQ4/700r4/3.42 gears 70 SS396 Chevelle 427/200-4R/3.73posi 61 Lincoln Continental, black on black Son you are going to drive me to drinkin if you don't stop drivin that hot rod lincoln |
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#6 | |
I have a radical idea!
Join Date: Jan 2005
Location: Sweet Home Alabama!
Posts: 6,513
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Re: I want one!!!!
Quote:
Yep. I'd say its an overbored 396 since it predates the 454. The 427 and 396 have the same stroke.
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'67 C-30 Dually Pickup 6.2 Turbo Diesel, NP435 ‘72 C-10 SWB , 350 4bbl, TH350 '69 C-10 SWB , 250 L6, 3 OTT '69 GMC C3500, dump truck, 351 V6, NP435 '84 M1009 CUCV Military Blazer 67 C-30 Turbodiesel build thread http://67-72chevytrucks.com/vboard/s...d.php?t=254096 My trucks http://s226.photobucket.com/albums/d...ediafilter=all Member of the 1-Ton Club! Last edited by 67_C-30; 03-20-2008 at 03:16 PM. |
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#7 |
Need a bigger hammer..
Join Date: Feb 2007
Location: Escondido,CA.
Posts: 280
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Re: I want one!!!!
So if that is true, how far out would you need to bore to get 427? My 396 has already been bored .060" I never did the math cause I don't know the formula..
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1968 GMC 3/4 LWB fleetside Custom Camper 2018 Silverado High Country 2500HD Duramax 4X4 |
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#8 |
Senior Member
Join Date: Aug 2002
Location: Valley Center KS
Posts: 3,525
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Re: I want one!!!!
I think I'd take a LS7 427 before I'd get that one....but that's just me
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#9 | |
Registered User
Join Date: Apr 2001
Location: DALLAS,TX
Posts: 21,977
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Re: I want one!!!!
Quote:
A 427 LS over a 427 BBC anyday of the week. Same power, definitely more efficient, & lighter weight for cheaper. The only thing the LS would fall 'short' on is looks (gotta love those big valve covers) . . .... If you're creative, that can be fixed as well.
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67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... Cubic inches is like Indiana Jones with a cheap pistol. |
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#10 | |
I have a radical idea!
Join Date: Jan 2005
Location: Sweet Home Alabama!
Posts: 6,513
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Re: I want one!!!!
Quote:
It is impossible to bore the 396 enough to make it a 454. You need a 427 or 454 block. When I made the reference to it being an overbored 396, I meant when it first came out it would have been referred to as that because the 454 did not exist in 1966. It shares the bore of the 454 and could also be referred to as a destroked 454. Sorry for the confusion there. The formula for figuring cubic inches on any engine is Bore X Bore X Stroke X .7854 X number of cylinders = cubic inches. For instance the the 396 is 4.094 X 4.094 X 3.76 X .7854 X 8 = 395.97 cu in. The 427 is 4.25 X 4.25 X 3.76 X .7854 X 8 = 426.72 cu in. Your .060" over 396 is now displacing 407.66 cu in. Most would call it a 408 since it rounds up.
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'67 C-30 Dually Pickup 6.2 Turbo Diesel, NP435 ‘72 C-10 SWB , 350 4bbl, TH350 '69 C-10 SWB , 250 L6, 3 OTT '69 GMC C3500, dump truck, 351 V6, NP435 '84 M1009 CUCV Military Blazer 67 C-30 Turbodiesel build thread http://67-72chevytrucks.com/vboard/s...d.php?t=254096 My trucks http://s226.photobucket.com/albums/d...ediafilter=all Member of the 1-Ton Club! |
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#11 | |
I have a radical idea!
Join Date: Jan 2005
Location: Sweet Home Alabama!
Posts: 6,513
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Re: I want one!!!!
Quote:
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'67 C-30 Dually Pickup 6.2 Turbo Diesel, NP435 ‘72 C-10 SWB , 350 4bbl, TH350 '69 C-10 SWB , 250 L6, 3 OTT '69 GMC C3500, dump truck, 351 V6, NP435 '84 M1009 CUCV Military Blazer 67 C-30 Turbodiesel build thread http://67-72chevytrucks.com/vboard/s...d.php?t=254096 My trucks http://s226.photobucket.com/albums/d...ediafilter=all Member of the 1-Ton Club! |
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#12 | |
Registered User
Join Date: May 2007
Location: Moore, Oklahoma
Posts: 2,396
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Re: I want one!!!!
Quote:
This engine is probably not in the same catalog as an LS-7 though because they are just too different. This engine is a cost-no-object dream motor for a high end build, (the type whose owners could care less about efficiency or packaging size). On the surface, an LS-7 looks like a more practical and logical modern choice, but this motor is for the guy who doesn't even know how to spell practical (but has a wallet full of crisp Benjies)
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Are you retired too? Nonsense! I'm in my prime |
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#13 |
Registered User
Join Date: Feb 2007
Location: Central Florida
Posts: 166
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Re: I want one!!!!
It may be less powerful then the 502 and 572, but that thing would look real good sitting between the frame rails on my truck. I guess just the '427' script on the valve covers does it for me. I would love a 502 or 572, but a 427 just is a cool historical engine.
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#14 |
Registered User
Join Date: Jan 2007
Location: shoreline, wa
Posts: 1,565
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Re: I want one!!!!
hey 67_c-30 you wopuldnt happen to know the stroke for a 327 crank would you?
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68 swb fleet bagged on 20's 327 with 4 speed http://67-72chevytrucks.com/vboard/s...d.php?t=223308 2014 Chevy 2500hd duramax CCLB |
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#15 |
laying low
![]() Join Date: Mar 2001
Location: Searcy, Ark. USA
Posts: 13,267
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Re: I want one!!!!
Maybe one day the 502 and 572 will enjoy some legend and history but I don't believe they will ever equal the legendary status of the old 427. It was a Hoss.
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Boog 69 Chevy stepside, 358/T350, 4.11 posi, 4.5/4 drop, rallys, poboy driver primer is finer 91 Chevy sportside, Tahoe, Yukon & GMC Crewcab All GM..'nuff said. I stand for the flag and kneel at the cross |
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#16 |
I have a radical idea!
Join Date: Jan 2005
Location: Sweet Home Alabama!
Posts: 6,513
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Re: I want one!!!!
Yes, its a 4.00" bore and a 3.25" stroke.
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'67 C-30 Dually Pickup 6.2 Turbo Diesel, NP435 ‘72 C-10 SWB , 350 4bbl, TH350 '69 C-10 SWB , 250 L6, 3 OTT '69 GMC C3500, dump truck, 351 V6, NP435 '84 M1009 CUCV Military Blazer 67 C-30 Turbodiesel build thread http://67-72chevytrucks.com/vboard/s...d.php?t=254096 My trucks http://s226.photobucket.com/albums/d...ediafilter=all Member of the 1-Ton Club! |
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#17 |
I have a radical idea!
Join Date: Jan 2005
Location: Sweet Home Alabama!
Posts: 6,513
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Re: I want one!!!!
Here's a list of the most common Chevy engines in case and body else wants to play with the formula.
Conventional SBC '55-'98 262 = 3.671" x 3.10" 265 = 3.750" x 3.00" 267 = 3.500" x 3.48" 283 = 3.875" x 3.00" 302 = 4.000" x 3.00" 305 = 3.736" x 3.48" 307 = 3.875" x 3.25" 327 = 4.000" x 3.25" 350 = 4.000" x 3.48" 400 = 4.125" x 3.75" SBC Strokers 334 = 3.766" X 3.75" (.030 over 305 block, 400 crank) 377 = 4.155" x 3.48" (.030" over 400 block, 350 crank) 383 = 4.030" x 3.75" (.030 over 350 block, 400 crank) LSX Engines SBC 4.8L - 293 = 3.779" x 3.27" 5.3L - 325 = 3.779" x 3.622" 5.7L - 345 = 3.893" x 3.622" 6.0L - 364 = 4.000" x 3.622" 7.0L - 427 = 4.125" x 4.00" Big Block Chevy 366 = 3.935" x 3.76" 396 = 4.096" x 3.76" 402 = 4.125" x 3.76" 427 = 4.250" x 3.76" 454 = 4.250" x 4.00" 502 = 4.466" x 4.00" 572 = 4.560" x 4.375" 8.1L - 496 = 4.250" x 4.37" Inline Chevy 6 cylinders 230 = 3.875" X 3.25" 250 = 3.875" X 3.53" 292 = 3.875" X 4.125" GMC V6 305 = 4.250" X 3.58" 351 = 4.560" X 3.58"
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'67 C-30 Dually Pickup 6.2 Turbo Diesel, NP435 ‘72 C-10 SWB , 350 4bbl, TH350 '69 C-10 SWB , 250 L6, 3 OTT '69 GMC C3500, dump truck, 351 V6, NP435 '84 M1009 CUCV Military Blazer 67 C-30 Turbodiesel build thread http://67-72chevytrucks.com/vboard/s...d.php?t=254096 My trucks http://s226.photobucket.com/albums/d...ediafilter=all Member of the 1-Ton Club! Last edited by 67_C-30; 03-21-2008 at 06:29 AM. |
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#18 |
chevy_632
Join Date: Jul 2004
Location: kelowna BC
Posts: 104
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Re: I want one!!!!
I looked at them few months back for my truck..just cant justify putting an aluminium block in a street car (or truck).use aluminium engines in our race cars for weight reasons mainly, with our truck the extra weight advantage is not going to help,as for the looks yes it looks good but i think my engine looks good to, i built it myhself for less and make a hell of alot more power then that crate 427 any day..just my oinion tho..rob
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#19 |
1971 GMC 3/4 ton, 572 CID
Join Date: Aug 2007
Location: Green Bay, WI
Posts: 293
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Re: I want one!!!!
My 572 is 4.5 X 4.5 but it's home built on a tall deck truck block
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71 GMC 3/4 572 CID, 1988 GMC 1/2 2006 Saturn Vue "We always have parts left over on a job this size" |
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#20 |
laying low
![]() Join Date: Mar 2001
Location: Searcy, Ark. USA
Posts: 13,267
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Re: I want one!!!!
There is bound to be another step in the formula. bore x stroke x 8 cyl doesn't come up to 350. 111.36 What is missing?
I have a 40 over 350 and guess it's about a 358?
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Boog 69 Chevy stepside, 358/T350, 4.11 posi, 4.5/4 drop, rallys, poboy driver primer is finer 91 Chevy sportside, Tahoe, Yukon & GMC Crewcab All GM..'nuff said. I stand for the flag and kneel at the cross |
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#21 | |
I have a radical idea!
Join Date: Jan 2005
Location: Sweet Home Alabama!
Posts: 6,513
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Re: I want one!!!!
Quote:
4.040" X 4.040" X 3.48 X .7854 X 8 = 356.88 They are commonly referred to as 358's though.
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'67 C-30 Dually Pickup 6.2 Turbo Diesel, NP435 ‘72 C-10 SWB , 350 4bbl, TH350 '69 C-10 SWB , 250 L6, 3 OTT '69 GMC C3500, dump truck, 351 V6, NP435 '84 M1009 CUCV Military Blazer 67 C-30 Turbodiesel build thread http://67-72chevytrucks.com/vboard/s...d.php?t=254096 My trucks http://s226.photobucket.com/albums/d...ediafilter=all Member of the 1-Ton Club! |
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#22 |
Eat My Rust
Join Date: Jan 2007
Location: Cypress, Texas
Posts: 3,362
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Re: I want one!!!!
From what I've read, GM is releasing a small batch of IDENTICLE COPO Camro 427s like this. Then, when it hit's the list of the other crate-motors, it's a bit changed. Autoblog has a really good article about the engine.
But, LS7's 427 vs this 427? Enlighten me on the differences in performance. The LS7 is a small block, the old 427 is a big block right? |
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#23 |
Senior Member
![]() Join Date: Dec 2003
Location: Pampa, Texas
Posts: 1,554
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Re: I want one!!!!
i'll stick with my 550 horse 468..... i don't think i'd want a aluminum big block... now alum heads yes...
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https://www.ebay.com/itm/29620574751...mis&media=COPY |
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#24 | |
Registered User
Join Date: Apr 2001
Location: DALLAS,TX
Posts: 21,977
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Re: I want one!!!!
Quote:
Although both of these 427's are all aluminum, the LS motor is filled w/the latest/greatest technological advancements. The 're-tooled' BBC/427 is just that, re-tooled from the original molds w/some of the late model enhancements (hyd roller cam bosses). Both have heads that will flow some serious air; but the LS based heads would most likely have better mid/low lift flow capabilities which = more power/less fuel consumption (I would have to research further to be 100% on the flow numbers of each head).
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67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... Cubic inches is like Indiana Jones with a cheap pistol. |
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#25 |
Account Suspended
Join Date: Jul 2006
Location: DFW
Posts: 1,427
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Re: I want one!!!!
Interesting questions and ones I've wondered about...
It seems the new small block has less mass, and better head technology. I'd like to read more opinions, please. |
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