[NH] ZZ4 Top end (heads, cam), 4bolt 355 in bag
Thread Starter
Joined: Jul 1999
Posts: 12,101
Likes: 127
From: SALEM, NH
Car: '88 Formula
Engine: LC9
Transmission: 4L60E
Axle/Gears: 3.89 9"
ZZ4 Top end (heads, cam), 4bolt 355 in bag
I bought this stuff for one of my Corvettes. Well, the frame on my '79 is too gone to be repaired and since it had the built motor that's going in my '75.
So I've got these ZZ4 heads and cam sitting around collecting dust.
The heads are polished. I didn't do that, but what I did do was replace all the springs with brand new GM performance parts 12495494 springs. (LT4, ZZ4) and 19171528 retainers.
$600 for the heads and cam, plus shipping.
I've also got a 4 bolt main, roller block. 1994 casting. Was hot tanked, magged, bored .030 over, brass freeze plugs, cam bearings, etc. $600
I don't think I can ship the block, but if I did, buy pays shipping.
-- Joe
So I've got these ZZ4 heads and cam sitting around collecting dust.
The heads are polished. I didn't do that, but what I did do was replace all the springs with brand new GM performance parts 12495494 springs. (LT4, ZZ4) and 19171528 retainers.
$600 for the heads and cam, plus shipping.
I've also got a 4 bolt main, roller block. 1994 casting. Was hot tanked, magged, bored .030 over, brass freeze plugs, cam bearings, etc. $600
I don't think I can ship the block, but if I did, buy pays shipping.
-- Joe
Re: ZZ4 Top end (heads, cam), 4bolt 355 in bag
I bought this stuff for one of my Corvettes. Well, the frame on my '79 is too gone to be repaired and since it had the built motor that's going in my '75.
So I've got these ZZ4 heads and cam sitting around collecting dust.
The heads are polished. I didn't do that, but what I did do was replace all the springs with brand new GM performance parts 12495494 springs. (LT4, ZZ4) and 19171528 retainers.
$600 for the heads and cam, plus shipping.
I've also got a 4 bolt main, roller block. 1994 casting. Was hot tanked, magged, bored .030 over, brass freeze plugs, cam bearings, etc. $600
I don't think I can ship the block, but if I did, buy pays shipping.
-- Joe
So I've got these ZZ4 heads and cam sitting around collecting dust.
The heads are polished. I didn't do that, but what I did do was replace all the springs with brand new GM performance parts 12495494 springs. (LT4, ZZ4) and 19171528 retainers.
$600 for the heads and cam, plus shipping.
I've also got a 4 bolt main, roller block. 1994 casting. Was hot tanked, magged, bored .030 over, brass freeze plugs, cam bearings, etc. $600
I don't think I can ship the block, but if I did, buy pays shipping.
-- Joe
Any chance you sell the cam?
Mikeymorris3@gmail.com
Joined: Oct 2001
Posts: 12,229
Likes: 1,157
From: Il
Car: 1989-92 FORMULA350 305 92 Hawkclone
Engine: 4++,350 & 305 CIs
Transmission: 700R4 4800 vig 18th700R4 t56 ZF6 T5
Axle/Gears: 3.70 9"ford alum chunk,dana44,9bolt
Re: ZZ4 Top end (heads, cam), 4bolt 355 in bag
Separate the cam ?
Thread Starter
Joined: Jul 1999
Posts: 12,101
Likes: 127
From: SALEM, NH
Car: '88 Formula
Engine: LC9
Transmission: 4L60E
Axle/Gears: 3.89 9"
Member
Joined: Jun 2010
Posts: 150
Likes: 1
From: Holly Springs NC
Car: 1988 iroc
Engine: 350 30 over
Transmission: T5
Axle/Gears: Series 2 373
Re: ZZ4 Top end (heads, cam), 4bolt 355 in bag
Were the heads Redone and if so about how long and what do you want for them
Supreme Member
iTrader: (17)
Joined: Nov 2005
Posts: 1,104
Likes: 2
From: Leicester,Massachusetts
Car: 1983 CHEVROLET CAMARO Z28
Engine: Forged 355 with a GT45 turbo
Transmission: TKO 600
Axle/Gears: built 4th gen rear with 3.27s
Re: ZZ4 Top end (heads, cam), 4bolt 355 in bag
How much for the heads? Pm me
Thread Starter
Joined: Jul 1999
Posts: 12,101
Likes: 127
From: SALEM, NH
Car: '88 Formula
Engine: LC9
Transmission: 4L60E
Axle/Gears: 3.89 9"
Re: ZZ4 Top end (heads, cam), 4bolt 355 in bag
I then decided to buy the LT4/ZZ springs, retainers. The springs I bought have more spring pressure than the older ZZ4 springs.
PM me an offer if you are still interested.
-- Joe
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Joined: May 2005
Posts: 728
Likes: 1
From: Toronto, Ohio
Car: 1991 Trans Am GTA
Engine: 355
Transmission: 4L60
Axle/Gears: 4th gen 10 bolt 3.42 posi
Re: ZZ4 Top end (heads, cam), 4bolt 355 in bag
Interested in the heads, since I already have the cam. Just want to clarify a few things. What's the max lift on those springs? Would I be able to throw some 1.5/1.6 split ratio roller rockers on without a problem? Are they ready to install, or is work needed?
Thread Starter
Joined: Jul 1999
Posts: 12,101
Likes: 127
From: SALEM, NH
Car: '88 Formula
Engine: LC9
Transmission: 4L60E
Axle/Gears: 3.89 9"
Re: ZZ4 Top end (heads, cam), 4bolt 355 in bag
Coil bind is 1.220"
So that's .560" lift at bind. I'd allow .030" for clearance.
ZZ4 cam is .470" at 1.5, .501" at 1.6.
The heads are clean and ready to run. I actually have not put the new springs in, (old ones are still on) they are new in box but I'll do that if someone wants to buy the heads. Or perhaps someone will want to buy them without the new springs + retainers at a lower price.
-- Joe
Joined: May 2005
Posts: 728
Likes: 1
From: Toronto, Ohio
Car: 1991 Trans Am GTA
Engine: 355
Transmission: 4L60
Axle/Gears: 4th gen 10 bolt 3.42 posi
Re: ZZ4 Top end (heads, cam), 4bolt 355 in bag
I gotta check the install height, but I think it's around 1.780"
Coil bind is 1.220"
So that's .560" lift at bind. I'd allow .030" for clearance.
ZZ4 cam is .470" at 1.5, .501" at 1.6.
The heads are clean and ready to run. I actually have not put the new springs in, (old ones are still on) they are new in box but I'll do that if someone wants to buy the heads. Or perhaps someone will want to buy them without the new springs + retainers at a lower price.
-- Joe
Coil bind is 1.220"
So that's .560" lift at bind. I'd allow .030" for clearance.
ZZ4 cam is .470" at 1.5, .501" at 1.6.
The heads are clean and ready to run. I actually have not put the new springs in, (old ones are still on) they are new in box but I'll do that if someone wants to buy the heads. Or perhaps someone will want to buy them without the new springs + retainers at a lower price.
-- Joe
Senior Member
Joined: Jan 2008
Posts: 631
Likes: 7
From: Massachusetts
Car: 86' IROC
Engine: Supercharged 350
Transmission: T56
Axle/Gears: 3.45
Re: ZZ4 Top end (heads, cam), 4bolt 355 in bag
Are these the aluminum fast burn/vortec ones? There a number on them? Got any pics? Id be intrested in them w/o the cam.
Thread Starter
Joined: Jul 1999
Posts: 12,101
Likes: 127
From: SALEM, NH
Car: '88 Formula
Engine: LC9
Transmission: 4L60E
Axle/Gears: 3.89 9"
Member
iTrader: (5)
Joined: Aug 2006
Posts: 311
Likes: 1
From: Stafford, Connecticut
Car: 87 Iroc
Engine: modified 350
Transmission: high performance built 700R4
Axle/Gears: Strange S60 3:73
Re: ZZ4 Top end (heads, cam), 4bolt 355 in bag
Do the heads flow more than stock Corvette 113's?
Supreme Member
iTrader: (17)
Joined: Nov 2005
Posts: 1,104
Likes: 2
From: Leicester,Massachusetts
Car: 1983 CHEVROLET CAMARO Z28
Engine: Forged 355 with a GT45 turbo
Transmission: TKO 600
Axle/Gears: built 4th gen rear with 3.27s
Re: ZZ4 Top end (heads, cam), 4bolt 355 in bag
congrats.
Thread Starter
Joined: Jul 1999
Posts: 12,101
Likes: 127
From: SALEM, NH
Car: '88 Formula
Engine: LC9
Transmission: 4L60E
Axle/Gears: 3.89 9"
Thread Starter
Joined: Jul 1999
Posts: 12,101
Likes: 127
From: SALEM, NH
Car: '88 Formula
Engine: LC9
Transmission: 4L60E
Axle/Gears: 3.89 9"
Joined: Oct 2001
Posts: 12,229
Likes: 1,157
From: Il
Car: 1989-92 FORMULA350 305 92 Hawkclone
Engine: 4++,350 & 305 CIs
Transmission: 700R4 4800 vig 18th700R4 t56 ZF6 T5
Axle/Gears: 3.70 9"ford alum chunk,dana44,9bolt
Re: ZZ4 Top end (heads, cam), 4bolt 355 in bag
Let me know if the cam doesn't sell
Joined: May 2005
Posts: 728
Likes: 1
From: Toronto, Ohio
Car: 1991 Trans Am GTA
Engine: 355
Transmission: 4L60
Axle/Gears: 4th gen 10 bolt 3.42 posi
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