So...How much does it cost to build a 380 cube ZR1? - ZR-1 Net Registry Forums

alnukem · 09-17-2013

I was just wondering what it would cost to build a 380 cube LT5(stock LT-5 block with 4" sleeves & stock crank offset ground to 3.7??"). I guess this is our "383" of the LT-5 world. Too bad it took this long to figure it out! I guess we would have 350's with topend jobs & probably no 368's or 385's, then the super mega-strokers. I also think that if rebuilding, more aggressive cams are a lot more reasonably installed. And, I wonder what the torque numbers would look like. Also, any downsides to this combo? Thanks, Tim

We Gone · 09-17-2013

Here is one example. Take your pick.

http://zr1specialist.com/HAT%20Web/p...20upgrades.htm

GOLDCYLON · 09-17-2013

No downside and about 10K

This included Petes intake cams and porting on the heads.

LGAFF · 09-17-2013

DIY for probably 3-4K

probably closer to 4 with the liner cost

rkreigh · 09-17-2013

price out what you "think" it will cost and double it (ask me how I know)

seriously, I think you are looking at a bit more than 10k, but these guys probably have cheaper and more current sources than I do.

contact pete and marc haibeck and they'll tell you "it depends on what the car needs" and they won't typically know until they get it apart

soooo.... to answer your question

keeping the stock rods? stock cams? I'd run pete's intake and stock exh.

porting the heads (you better) CNC or hand port???

have the headers, exh, blah blah, that you need to make all of it work

it adds up real quick

price out all the parts you need, labor, and options you want

if you can do it for 4k, sign me up for 3 of them!!!

XfireZ51 · 09-17-2013

When my 5.7L had Pete's intake cams, I really thought it was a very sweet motor. Very smooth. And it was. I was concerned about adding the exhaust cam being too much, too lumpy, too raucous.
NOW, it is just perfect IMO. So tractable, so driveable. It does exactly what you want it to do and when. It would be difficult to go back. And so if I were to go to a larger displacement LT-5, I couldn't imagine spending the money without doing the cams. If anything, the larger displacement NEEDS the bigger cams to take full advantage of the additional cubes.

GOLDCYLON · 09-18-2013

Quote:

Originally Posted by LGAFF

DIY for probably 3-4K

probably closer to 4 with the liner cost

If you have the skillsets, tools, time maybe....

LGAFF · 09-18-2013

Got the original motor from my 90, it will be either a 368 or a 380...so I guess I will find out

Kevin · 09-24-2013

I really need to set up a pittsburgh zr-1 crew.

Scrrem · 09-26-2013

I'm getting ready to go the 380 route with an offset grind. Does the grinding process dislodge the plug in the crank??
Rich

09-17-2013	#1
alnukem Join Date: Jan 2010 Location: Freedom Pa Posts: 275	So...How much does it cost to build a 380 cube ZR1? I was just wondering what it would cost to build a 380 cube LT5(stock LT-5 block with 4" sleeves & stock crank offset ground to 3.7??"). I guess this is our "383" of the LT-5 world. Too bad it took this long to figure it out! I guess we would have 350's with topend jobs & probably no 368's or 385's, then the super mega-strokers. I also think that if rebuilding, more aggressive cams are a lot more reasonably installed. And, I wonder what the torque numbers would look like. Also, any downsides to this combo? Thanks, Tim

09-17-2013	#2
We Gone Join Date: Apr 2004 Location: ATL. GA. Posts: 2,170	Re: So...How much does it cost to build a 380 cube ZR1? Here is one example. Take your pick. http://zr1specialist.com/HAT%20Web/p...20upgrades.htm __________________ Steve 1990 Steel Blue/Black #2355 1990 Red/Red #1473 1991 Quasar /Black #118 Sold 1991 Turquoise/Black #766 Parted Out 1993 Yellow/White #179 Sold 1990 Black/Gray #1361 Headers/4:10s Sold

09-17-2013	#3
GOLDCYLON Join Date: May 2007 Location: Peoria, AZ Posts: 9,155	Re: So...How much does it cost to build a 380 cube ZR1? No downside and about 10K This included Petes intake cams and porting on the heads. __________________ GOLDCYLON - 91 ZR-1 #2014 GOLDCYLON - 90 ZR-1 #2794, 4L60e (Formerly Schrade's) GOLDCYLON - 11 CTS-V Arizona State Director 91 WHITE/BLACK #2014. 380 P&P&PCed,Ported Heads, Jeal Long tubes, Corsa Exhaust/FIKSE FM-5s /LED TLs, LED Headlights, Front Wilwood 6 piston narrowlite calipers and rear Wilwood caliper street shop mod,CNCed Coolant Pipes,TPI Cvr,Filter cover,Stainless Bolts, DRM/DOM PROM /ZFDOC mod build #102,DRLs,BMAD with stainless Debris Screen,Coplan Air Blaster, Pioneer APP Radio 4,Brey-Krause HB,Sub Bar,Fire extinguisher seat mount,DRM Coilovers,LEDs everywhere,Compass mirror (orange),V1 DIC hidden display, Homelink sun visor, Carbon Fiber top x3 and APSIS Carbon Fiber interior, APSIS CF Steering Wheel/NAPA Leather, Banski trailing arms, Guldstrand front suspension,urethane bushings from Prothane (total suspension) ZFDoc drive shaft safety loop, raptor shift light (orange),AO engineering louver front plate, Console seat cushion, 96CE seats with black custom Sheepskins, ss billet catch can,Viper remote entry/alarm,Cragar Rear Louvers,LED side louver lights, Dewitts Radiator with SPAL fans and a Woods 160 T-Stat 90 RED/BLACK #2794. 4L60e Automatic Stage V by RPM Transmission, TCI Dedicated TCM, OBX Stainless Headers, Corsa Exhaust, SAN Secondaries and Haibeck PROM, Exotic Muscle Coil overs, LED Interior Lights, LED Tail Lights, LED Headlights, 94 Sport seats with black custom Sheepskins , Cragar rear louvers, GS Front calipers, Banski Trailing arms, APSIS Carbon Fiber steering wheel, Front and Rear Baer Eradispeeds, DRLs, Guldstrand front suspension,urethane bushings from Prothane (total suspension), Dewitt's Raditor with Dual SPAL fans and a Haibeck 170 T-Stat 11 RED/GREY CTS-V Last edited by GOLDCYLON; 09-18-2013 at 09:42 AM.

09-17-2013	#4
LGAFF Join Date: Mar 2007 Location: Crystal Lake, IL Posts: 7,193	Re: So...How much does it cost to build a 380 cube ZR1? DIY for probably 3-4K probably closer to 4 with the liner cost __________________ LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359 Last edited by LGAFF; 09-17-2013 at 09:39 PM.

09-17-2013	#5
rkreigh Join Date: Jan 2004 Location: Alex VA Posts: 1,087	Re: So...How much does it cost to build a 380 cube ZR1? price out what you "think" it will cost and double it (ask me how I know) seriously, I think you are looking at a bit more than 10k, but these guys probably have cheaper and more current sources than I do. contact pete and marc haibeck and they'll tell you "it depends on what the car needs" and they won't typically know until they get it apart soooo.... to answer your question keeping the stock rods? stock cams? I'd run pete's intake and stock exh. porting the heads (you better) CNC or hand port??? have the headers, exh, blah blah, that you need to make all of it work it adds up real quick price out all the parts you need, labor, and options you want if you can do it for 4k, sign me up for 3 of them!!! __________________ 95 390 LPE ZR1 (505 rwhp) LSV = Lingenfelter Super Vette Twin Turbo 2003 Z06 (800 RWHP)

09-17-2013	#6
XfireZ51 Join Date: May 2007 Location: Chicagoland, IL Posts: 9,702	Re: So...How much does it cost to build a 380 cube ZR1? When my 5.7L had Pete's intake cams, I really thought it was a very sweet motor. Very smooth. And it was. I was concerned about adding the exhaust cam being too much, too lumpy, too raucous. NOW, it is just perfect IMO. So tractable, so driveable. It does exactly what you want it to do and when. It would be difficult to go back. And so if I were to go to a larger displacement LT-5, I couldn't imagine spending the money without doing the cams. If anything, the larger displacement NEEDS the bigger cams to take full advantage of the additional cubes. __________________ [SIGPIC][/SIGPIC]Former Membership Chairman Former ZR-1 Registry - BOD 1972 Corvette 4speed base Coupe SOLD long time ago 1984 Corvette Z-51/4+3 SOLD 1992 Corvette ZR-1 Aqua/Gray #474 SOLD 1992 Corvette ZR-1 Black Rose/Cognac #458 2014 Honda VFR Interceptor DX

09-18-2013	#8
LGAFF Join Date: Mar 2007 Location: Crystal Lake, IL Posts: 7,193	Re: So...How much does it cost to build a 380 cube ZR1? Got the original motor from my 90, it will be either a 368 or a 380...so I guess I will find out __________________ LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359

09-24-2013	#9
Kevin Join Date: Jun 2005 Location: pittsburgh Posts: 4,632	Re: So...How much does it cost to build a 380 cube ZR1? I really need to set up a pittsburgh zr-1 crew. __________________ It's not the car, it's the people - Doug Johnson 90 r/r "KEYS ON" nick named "T.L.B"

09-26-2013	#10
Scrrem Join Date: Feb 2009 Location: Alexandria, Virginia Posts: 1,467	Re: So...How much does it cost to build a 380 cube ZR1? I'm getting ready to go the 380 route with an offset grind. Does the grinding process dislodge the plug in the crank?? Rich __________________ 1990 Bright Red Coupe #608 380 Stroker, Ported Heads/Intake/Housings/TB Haibeck Secondary Delete Chip / Pete's Cams George Braml Intake / FIC Injectors Coated SW Headers / Corsa Bill Boudreau B/B ZF6 / Viper 4.10 gears Ron Davis Radiator Pioneer AVIC-Z140BH NAV Fikse FM5's 285 / 335 / C6 Brakes WAZOO Member