GM Goodwrench SB engines are craptastical - Page 2 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

krue · 09-14-2006, 12:15 AM

Good luck.

Greubin · 09-14-2006, 01:10 PM

I received good news this morning. All my phone calls and rattling cages payed off. My dealer is going to repair the cylinder heads. I hope everything goes well from here on out.

gator2511 · 09-14-2006, 01:15 PM

Thats great news! Its a shame that it took so much effort to get them to honor the engine like they should. Good Luck

JMac11 · 09-14-2006, 02:44 PM

Just an FYI....... Valves and guides within factory specs, oil consumption should not be a problem with no seals. For decades GM only put small o-rings on the valves, to stop oil consumption. Having rebuilt heads myself, I have used the type on the engine, when knurling guidess, but with new guides and new valves, just the small o rings.

dave666693 · 09-14-2006, 04:20 PM

Does anyone re-build their own motors anymore?

**1970 CST Short Wide** · 09-14-2006, 04:29 PM

Glad to hear there fixin you up. Weve never had any more troubles with our engine since they fixed the heads, but ours had bad springs too. Hope they do them up right for you.

72SWBChevy · 09-14-2006, 04:31 PM

I am considering buying a ZZ4, but now I dont know which way to go. It seems you cant get a reliable product unless you rebuild it yourself. Good feedback from everyone.

*MisterMan* · 09-14-2006, 04:42 PM

bought my rebuilt 350 4 bolt main, cam, 9;5:1 compression ratio and a few extra lil dingy's

. man said all stock items it would pump 300 hp. i now got headers, ele fan, performer intake re built stock carb (4b)... hoping for around 320 hp or so..... paid 1750 for engine. just engine. (private builder in town, called "repower inc")

Greubin · 09-14-2006, 07:00 PM

If one should go with a rebuilt engine, make sure you cough up the extra $$ for magnafluxing the block and heads to check for casting flaws, etc.

**68 Stepside** · 09-14-2006, 10:13 PM

I had a ZZ3 in my 85 Z28. I put 16,000 hard miles on it in 9 months, puking a transmission in the works, and had 0 problems with the engine. But I've also heard horror stories about the same engine, and other GM crates, well...crate engines in general. I've heard more bad stuff about Jasper than I can even think of.......I'll build the next one....

*Billla* · 09-14-2006, 11:15 PM

Quote:

Originally Posted by Tim Christian

I have a ZZ-4 and IMO it is GREAT and would buy it again!

Yes, but the GMPP engines are completely different than the "Targetmaster" crate replacement engines.

*Billla* · 09-14-2006, 11:18 PM

Quote:

Originally Posted by dave666693

Does anyone re-build their own motors anymore?

Yes - me :-D The biggest challenge is that the dollars are almost a wash anymore...I'm working on a 1995 LT1 O/H right now, but I could have bought the same engine in a crate from Golen Engine Service for only about $800-$1000 more than what it's costing me :/

**N2TRUX** · 09-14-2006, 11:37 PM

Quote:

Originally Posted by dave666693

Does anyone re-build their own motors anymore?

Not unless they just want the experience. My bro-in-law who has built motors for years told me "buy a GM crate motor, you can not beat the price". I took his advice and bought a Ramjet 350. I love it so far...

Gray Ghost · 09-15-2006, 01:44 AM

I bought a crate motor on the recommendation of a few people. I will NEVER buy another one. I like the new word you made up for them, fits perfectly.

GM Crates suck. The 'made in' stamp on the block says it all.

Green Machine · 09-15-2006, 11:48 AM

I agree and run an older engine like that myself, however if you notice, his heads use the newer style valves that only have one groove, no place for an o ring, they rely entirely on the seals under the springs, with no o ring there is a fair amount of oil going down the stem that can only be stopped by the seals, so they have to be good.

Quote:

Originally Posted by JMac11

Just an FYI....... Valves and guides within factory specs, oil consumption should not be a problem with no seals. For decades GM only put small o-rings on the valves, to stop oil consumption. Having rebuilt heads myself, I have used the type on the engine, when knurling guidess, but with new guides and new valves, just the small o rings.

bwright · 09-15-2006, 03:37 PM

That's why I build my own engines. Cost wise it's a wash (not including my labor), but at least I know what I've got when I'm done. Only downside is that I don't have a warranty.

Greubin · 09-19-2006, 06:39 PM

It's done - I picked up my truck this morning from the local Chevy Dealer. No smoke or knocking. I hope this is the end..thanks for all the replies and tips.

It's a good feeling to have the old girl back

09-14-2006, 12:15 AM	#26
krue Designated A-hole! Join Date: Mar 2003 Location: South Mississippi Posts: 36,450	Re: GM Goodwrench SB engines are craptastical Good luck. __________________ "If it ain't broke, fix it 'til it is!" Being stupid ain't illegal. We're Still Debt Free Except for the House!!! www.daveramsey.com 70 GMC SWB Stepside project "Green Booger" soon to be 6.0l/4l80e 93 S-10 "Poppaw's Truck"

09-14-2006, 01:10 PM	#27
Greubin Registered User Join Date: Dec 2005 Location: SJC Posts: 158	Re: GM Goodwrench SB engines are craptastical I received good news this morning. All my phone calls and rattling cages payed off. My dealer is going to repair the cylinder heads. I hope everything goes well from here on out. __________________ ___________ Greubin '71 C20 custom - GM Crate 350CI/290HP, BTO 700R4 level II, Qjet, and HEI Last edited by Greubin; 09-14-2006 at 03:39 PM.

09-14-2006, 01:15 PM	#28
gator2511 Registered User Join Date: Mar 2005 Location: tampa florida Posts: 776	Re: GM Goodwrench SB engines are craptastical Thats great news! Its a shame that it took so much effort to get them to honor the engine like they should. Good Luck

09-14-2006, 02:44 PM	#29
JMac11 Registered User Join Date: May 2005 Location: Tallahassee Fl Posts: 773	Re: GM Goodwrench SB engines are craptastical Just an FYI....... Valves and guides within factory specs, oil consumption should not be a problem with no seals. For decades GM only put small o-rings on the valves, to stop oil consumption. Having rebuilt heads myself, I have used the type on the engine, when knurling guidess, but with new guides and new valves, just the small o rings.

09-14-2006, 04:20 PM	#30
dave666693 Registered User Join Date: Jul 2005 Location: Edgewood, WA Posts: 901	Re: GM Goodwrench SB engines are craptastical Does anyone re-build their own motors anymore?

09-14-2006, 04:29 PM	#31
1970 CST Short Wide Senior Moment Join Date: Mar 2002 Location: Pittsburg Ca Posts: 4,168	Re: GM Goodwrench SB engines are craptastical Glad to hear there fixin you up. Weve never had any more troubles with our engine since they fixed the heads, but ours had bad springs too. Hope they do them up right for you. __________________ 1970 CST LS 1 6 speed Ford 9 inch Detroit Tru Track, Dakota Didgital, Vintage Air, QA1 Coil Overs Front & Rear Lots of FUN 2013 GMC PU, Oldest Son 71 GMC LWB. QA1 Suspension, Angry SB. Youngest Son 2019 GMC Diesil Dually. Youngest Son 2017 Toyota SUV Daughters car 2018 Traverse , Wife’s Ride Pittsburg Ca 94565

09-14-2006, 04:31 PM	#32
72SWBChevy Registered User Join Date: Jun 2004 Location: Houston Tx Posts: 753	Re: GM Goodwrench SB engines are craptastical I am considering buying a ZZ4, but now I dont know which way to go. It seems you cant get a reliable product unless you rebuild it yourself. Good feedback from everyone. __________________ 1977 Camaro 468 BBC - SOLD - 1972 Chevy SWB....in the works!! 2006 Crew Cab Dmax/Allison Summit White-SOLD- 2009 Toyota Tacoma V6 Pre Runner - daily driver - my build thread -http://67-72chevytrucks.com/vboard/s...95#post4774595

09-14-2006, 04:42 PM	#33
MisterMan Account Suspended Join Date: Jan 2006 Location: Visalia, California Posts: 286	Re: GM Goodwrench SB engines are craptastical bought my rebuilt 350 4 bolt main, cam, 9;5:1 compression ratio and a few extra lil dingy's . man said all stock items it would pump 300 hp. i now got headers, ele fan, performer intake re built stock carb (4b)... hoping for around 320 hp or so..... paid 1750 for engine. just engine. (private builder in town, called "repower inc")

09-14-2006, 07:00 PM	#34
Greubin Registered User Join Date: Dec 2005 Location: SJC Posts: 158	Re: GM Goodwrench SB engines are craptastical If one should go with a rebuilt engine, make sure you cough up the extra $$ for magnafluxing the block and heads to check for casting flaws, etc. __________________ ___________ Greubin '71 C20 custom - GM Crate 350CI/290HP, BTO 700R4 level II, Qjet, and HEI

09-14-2006, 10:13 PM	#35
68 Stepside huh? Join Date: May 2000 Location: Washington, Illinois Posts: 5,692	Re: GM Goodwrench SB engines are craptastical I had a ZZ3 in my 85 Z28. I put 16,000 hard miles on it in 9 months, puking a transmission in the works, and had 0 problems with the engine. But I've also heard horror stories about the same engine, and other GM crates, well...crate engines in general. I've heard more bad stuff about Jasper than I can even think of.......I'll build the next one.... __________________ Someday when I'm lonely, Wishing you weren't so far away, Then I will remember Things we said today. RIP El Jay

09-15-2006, 01:44 AM	#39
Gray Ghost Senior Member Join Date: Sep 2004 Location: Terrell, TX Posts: 1,967	Re: GM Goodwrench SB engines are craptastical I bought a crate motor on the recommendation of a few people. I will NEVER buy another one. I like the new word you made up for them, fits perfectly. GM Crates suck. The 'made in' stamp on the block says it all. __________________ Kelly '05 GMC Sierra SLE Z71 Bone stock except for new bed rail caps.

09-15-2006, 03:37 PM	#41
bwright Registered User Join Date: May 2004 Location: Dickson, TN Posts: 141	Re: GM Goodwrench SB engines are craptastical That's why I build my own engines. Cost wise it's a wash (not including my labor), but at least I know what I've got when I'm done. Only downside is that I don't have a warranty. __________________ 1977 Chevrolet C10 - 305/TH350, SWB, Stepside, 3/5 drop...work in progress.

09-19-2006, 06:39 PM	#42
Greubin Registered User Join Date: Dec 2005 Location: SJC Posts: 158	Re: GM Goodwrench SB engines are craptastical It's done - I picked up my truck this morning from the local Chevy Dealer. No smoke or knocking. I hope this is the end..thanks for all the replies and tips. It's a good feeling to have the old girl back __________________ ___________ Greubin '71 C20 custom - GM Crate 350CI/290HP, BTO 700R4 level II, Qjet, and HEI

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