Engine Pull this winter, what else should I consider doing while its out - ZR-1 Net Registry Forums

emmvette · 09-29-2016

My car will be going to the Surgeon, Doctor Haibeck for the winter to have the engine freshened up. While its pulled out, what other things should I consider having done so next year, after the engine is reinstalled, I don't think - Darn, why didn't we do that WHILE THE ENGINE WAS OUT!!!!

I'm also considering coil-overs. The car is set up and primarily used for HPDE's (and going to church). It has plenty of power, nice brakes, poly bushings, an oversized radiator, and roll bar. All this work was done in 1995-1997, but is still all operating as intended.

If I was spending somebody else's money, I'd also do exhaust cut-outs, but I'm probably drawing the line at this and saying "no" due to cost.

Car has about 27k miles for reference. All suggestions will be appreciated.

Paul Workman · 09-29-2016

Marc's "510" package w/ 410 gears...would be nice if you don't already have it done. Headers?

32valvesftw · 09-29-2016

Id start with a good cleaning, and then maybe deal with any worn wire looms, and grounds. Photograph all of the engine bay while its out so you know in the future when the engine is blocking your view. I have never had the engine out of a C4 so the other guys probably have more specific advise.

Dynomite · 09-29-2016

Marc will do a Super Restoration for sure but I am not so sure he Blocks Throttle Body Coolant.....

Blocking TB Coolant, Fluidyne Radiator and Thermostats

There is a BIG difference between TB Coolant Blocking and TB Coolant Bypass......I Block TB Coolant at the Injector Housing.

Detailed items of a Restoration do depend on the condition of the engine before you start.
Several Top End Restorations are described in my Signature of which Rebuilding the Starter is top on the list once the Plenum is removed.

One last item....The Oil Pressure Regulating Valve Cover Plate....see item #3 Potential Oil Leaks and the OPRV Cover Plate

With Engine Out....Replace Both 6mm x 15mm Bolts with 8mm Heads with 6mm x 15mm Bolts with 10mm Heads.

emmvette · 09-30-2016

Quote:

Originally Posted by Paul Workman

Marc's "510" package w/ 410 gears...would be nice if you don't already have it done. Headers?

It's already got an extra 52 cubic inches.
410 gears, hmmmm, I have those in my '68 and it practically redlines driving 85 mph. The 410's might be good in this car - how would it affect the top speed or 1 mile drags?
Headers are a good thought....

Sent from my iPhone using ZR-1 Net Registry

LGAFF · 09-30-2016

cams

emmvette · 09-30-2016

Quote:

Originally Posted by LGAFF

cams

It already has a funky rhythm from LPE (239/231); hopefully not needed ;-)
It's been 19 years ago, so we'll see how well they held up.

PhillipsLT5 · 09-30-2016

Quote:

Originally Posted by emmvette

It's already got an extra 52 cubic inches.
410 gears, hmmmm, I have those in my '68 and it practically redlines driving 85 mph. The 410's might be good in this car - how would it affect the top speed or 1 mile drags?
Headers are a good thought....

Sent from my iPhone using ZR-1 Net Registry

You have both 5th & 6th overdrive, 75 MPH = 2200 RPM aprox in 6th, with 410's, I get 22 MPG with 410's and 422 RWHP, close to redline in 4th at 1/4 mile, close to redline in 5th at mile with 410's

PhillipsLT5 · 09-30-2016

headers, gears, cut outs, dyno tune, engine parts refinish, stainless bolts, intake temp sensor relocation, throttle body bypass coolant, rebuild water pump, rebuild A/C compressor

Top Toy · 10-01-2016

The great thing about Marc is he can serve up whatever you want! Headers and 4.10's are prerequisites for these cars. You've probably got an outdated exhaust system, too. Check out B&B Fusion, Stainless Works Turbo or Corsa. With the engine out, you can get the porting updated, plenum, injector housings and heads. And when you put it back together, include plenum insulator plates and throttle body coolant bypass. A friend of mine with a similar vintage 385 LPE picked up 55 RWHP after Marc freshened it up. Then there's the shifter. Boudreau or Hurst. You'll love the improved feel. And finally, beam plates. They don't look like they will work but they they really do help keep your car going straight under power.

Sent from my XT1254 using ZR-1 Net Registry mobile app

09-29-2016	#1
emmvette Join Date: Jul 2013 Location: Central Iowa Posts: 190	Engine Pull this winter, what else should I consider doing while its out My car will be going to the Surgeon, Doctor Haibeck for the winter to have the engine freshened up. While its pulled out, what other things should I consider having done so next year, after the engine is reinstalled, I don't think - Darn, why didn't we do that WHILE THE ENGINE WAS OUT!!!! I'm also considering coil-overs. The car is set up and primarily used for HPDE's (and going to church). It has plenty of power, nice brakes, poly bushings, an oversized radiator, and roll bar. All this work was done in 1995-1997, but is still all operating as intended. If I was spending somebody else's money, I'd also do exhaust cut-outs, but I'm probably drawing the line at this and saying "no" due to cost. Car has about 27k miles for reference. All suggestions will be appreciated. __________________ [CENTER][SIZE=4][COLOR=red]1990 ZR-1 Red / Red[/COLOR][/SIZE][/CENTER]

09-29-2016	#2
Paul Workman Join Date: Nov 2007 Location: Squires (near Ava MO in the Mark Twain N'tl Forest) - Missouri Posts: 6,493	Re: Engine Pull this winter, what else should I consider doing while its out Marc's "510" package w/ 410 gears...would be nice if you don't already have it done. Headers? __________________ Good carz, good food, good friendz = the best of timez! 90 #1202 "FBI" top end ported & relieved Cam timing by "Pete the Greek" Sans secondaries Chip & dyno tuning by Haibeck Automotive SW headers, X-pipe, MF muffs Former Secretary, ZR-1 Net Registry

09-29-2016	#4
Dynomite Join Date: Aug 2009 Location: South Dakota/California Posts: 3,797	Re: Engine Pull this winter, what else should I consider doing while its out Marc will do a Super Restoration for sure but I am not so sure he Blocks Throttle Body Coolant..... Blocking TB Coolant, Fluidyne Radiator and Thermostats There is a BIG difference between TB Coolant Blocking and TB Coolant Bypass......I Block TB Coolant at the Injector Housing. Detailed items of a Restoration do depend on the condition of the engine before you start. Several Top End Restorations are described in my Signature of which Rebuilding the Starter is top on the list once the Plenum is removed. One last item....The Oil Pressure Regulating Valve Cover Plate....see item #3 Potential Oil Leaks and the OPRV Cover Plate With Engine Out....Replace Both 6mm x 15mm Bolts with 8mm Heads with 6mm x 15mm Bolts with 10mm Heads. __________________ Left Clickable links -Solutions- LT5 Modifications/Rebuild Tricks Low Mileage ZR-1 Restoration 1990 Corvette (L98) Modifications LT5 Eliminated Systems LT5 Added Systems LT5/ZR-1 Fluids 1995 LT5 SPECIFIC TOP END REBUILD TRICKS Last edited by Dynomite; 10-02-2016 at 12:11 PM.

09-30-2016	#6
LGAFF Join Date: Mar 2007 Location: Crystal Lake, IL Posts: 7,194	Re: Engine Pull this winter, what else should I consider doing while its out cams __________________ LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359

09-30-2016	#9
PhillipsLT5 Join Date: Aug 2005 Location: Scottsdale, AZ Posts: 2,452	Re: Engine Pull this winter, what else should I consider doing while its out headers, gears, cut outs, dyno tune, engine parts refinish, stainless bolts, intake temp sensor relocation, throttle body bypass coolant, rebuild water pump, rebuild A/C compressor

09-29-2016	#3
32valvesftw Join Date: Jun 2015 Location: Texas Posts: 530	Re: Engine Pull this winter, what else should I consider doing while its out Id start with a good cleaning, and then maybe deal with any worn wire looms, and grounds. Photograph all of the engine bay while its out so you know in the future when the engine is blocking your view. I have never had the engine out of a C4 so the other guys probably have more specific advise.

10-01-2016	#10
Top Toy Join Date: Jul 2012 Location: Allentown, PA Posts: 309	Re: Engine Pull this winter, what else should I consider doing while its out The great thing about Marc is he can serve up whatever you want! Headers and 4.10's are prerequisites for these cars. You've probably got an outdated exhaust system, too. Check out B&B Fusion, Stainless Works Turbo or Corsa. With the engine out, you can get the porting updated, plenum, injector housings and heads. And when you put it back together, include plenum insulator plates and throttle body coolant bypass. A friend of mine with a similar vintage 385 LPE picked up 55 RWHP after Marc freshened it up. Then there's the shifter. Boudreau or Hurst. You'll love the improved feel. And finally, beam plates. They don't look like they will work but they they really do help keep your car going straight under power. Sent from my XT1254 using ZR-1 Net Registry mobile app __________________ '95 ZR-1, aqua/gray, #167 368 LPE/Haibeck, Web cams, Stainless Works headers, B&B Fusion exhaust, 18" Fikse wheels, Alcon brakes, lowered. 491 SAE RWHP.