Heads
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Joined: Nov 2004
Posts: 252
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From: Saskatchewan
Car: 84 Z28HO
Engine: 350 summit block
Transmission: T5
Axle/Gears: 3.73 10bolt
Heads
Brought home some cylinder heads today. I have several sets of 624's and 882's, all with 2.02 valves except for one pair of 882's. The problem is, I can't find this mystery pair anywhere, not even on mortec. Pic attached..
The serial number is either 3888820 or 3888920.
The serial number is either 3888820 or 3888920.
Senior Member
Joined: Mar 2001
Posts: 841
Likes: 3
From: Silverhill,Al
Car: 92 Camaro RS
Engine: 305 TBI
Transmission: T-5
Looks like truck heads...
71-77 350 BLOCK ID # VIN CODE "Y,V,L" HEAD ID #
366245 3914660 3914678 3932368 3932386
3932388 3956618 3970010 3970014
33882, 3888336, 3973487 3973493, 3986339, 3998920 3998991, 3998993, 3998997
Notes: CARB, 10/30 Series, L.H. dipstick, 2-bolt mains, tapered spark plugs, 6-bolt heads for short exhaust manifold
71-77 350 BLOCK ID # VIN CODE "Y,V,L" HEAD ID #
366245 3914660 3914678 3932368 3932386
3932388 3956618 3970010 3970014
33882, 3888336, 3973487 3973493, 3986339, 3998920 3998991, 3998993, 3998997
Notes: CARB, 10/30 Series, L.H. dipstick, 2-bolt mains, tapered spark plugs, 6-bolt heads for short exhaust manifold
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Joined: Jun 2001
Posts: 920
Likes: 0
From: Saskatchewan
Car: 1986 Iroc
Engine: 454 Demon 850DP
Transmission: TH350, 3500 stall
Axle/Gears: 3.73
Originally posted by DartByU
Looks like truck heads...
71-77 350 BLOCK ID # VIN CODE "Y,V,L" HEAD ID #
366245 3914660 3914678 3932368 3932386
3932388 3956618 3970010 3970014
33882, 3888336, 3973487 3973493, 3986339, 3998920 3998991, 3998993, 3998997
Notes: CARB, 10/30 Series, L.H. dipstick, 2-bolt mains, tapered spark plugs, 6-bolt heads for short exhaust manifold
Looks like truck heads...
71-77 350 BLOCK ID # VIN CODE "Y,V,L" HEAD ID #
366245 3914660 3914678 3932368 3932386
3932388 3956618 3970010 3970014
33882, 3888336, 3973487 3973493, 3986339, 3998920 3998991, 3998993, 3998997
Notes: CARB, 10/30 Series, L.H. dipstick, 2-bolt mains, tapered spark plugs, 6-bolt heads for short exhaust manifold
Senior Member
Joined: Mar 2001
Posts: 841
Likes: 3
From: Silverhill,Al
Car: 92 Camaro RS
Engine: 305 TBI
Transmission: T-5
Originally posted by Blackroc86
Where do you find detailed info like that? I am trying to find more detail on some bbc heads.
Where do you find detailed info like that? I am trying to find more detail on some bbc heads.
http://www.cehighperformance.com/c_t...lock_codes.htm
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Joined: Oct 2007
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< Heads >
Whoa, stop the music. New (dumb) kid on the block. Man I have recently a roadster, and have come to realize that the heads are just what you are talking about. Thankfully my heads do match, but in agremenet with yours, my numbers are definitely 3888820. Does anyone have any idea where they actually came from. Everyone I have talked to in the pro shops here in the Portland Oregon area, have basically "all" told me that the darned things (as far as chevrolet is concerned) do not exist... HELP... As I want to do is increase my cam a little bit to acquire a subtle looping sound...... George
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Joined: Apr 2023
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Re: Heads
Supreme Member
Joined: Sep 2001
Posts: 6,111
Likes: 53
From: Ontario, Canada
Car: 1988 Firebird S/E
Engine: 406Ci Vortec SBC
Transmission: TH-350/3500stall
Axle/Gears: 7.5" Auburn 4.10 Posi-Traction
Re: Heads
Never seen nor heard of a 820 sbc head. But lots of 920 heads. Its a pre '75 76 cc large chamber head. Heavier casting than late 462624 or 882.
A nicer head. much like a 441 head. I have a pair here all ported 1.94x1.50 ready to go on my 305 blower engine.
Great for budget blower sbc engines where a low compression ratio is desired.
They flow good once fully ported. Same job as porting a 441 or a 305 ho head 4416 for power.
A better head than 462624 or 882.
A nicer head. much like a 441 head. I have a pair here all ported 1.94x1.50 ready to go on my 305 blower engine.
Great for budget blower sbc engines where a low compression ratio is desired.
They flow good once fully ported. Same job as porting a 441 or a 305 ho head 4416 for power.
A better head than 462624 or 882.
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