82' C§ Crossfire Engine
Thread Starter
5th Gear
Joined: Sep 2002
Posts: 5
Likes: 0
From: Frankfurt HEssen
82' C§ Crossfire Engine
Dear all !
I'm from Germany so I apologize for my bad English.
I'm searching for all information about the 82' Crossfire 350 engine (Valve size, compression ratio, types of pistons, size of chamber, cam etc.) The only thing I have heard is that the engine has a 9.0 compression ratio, 4-bolt-block and forged pistion - is that true ?
Thanks you very much and best regards,
Hanno
I'm from Germany so I apologize for my bad English.
I'm searching for all information about the 82' Crossfire 350 engine (Valve size, compression ratio, types of pistons, size of chamber, cam etc.) The only thing I have heard is that the engine has a 9.0 compression ratio, 4-bolt-block and forged pistion - is that true ?
Thanks you very much and best regards,
Hanno
Racer
Joined: May 2000
Posts: 386
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From: Niedernhausen, Germany
Re: 82' C§ Crossfire Engine (Saenger)
Schau mal hier nach:
http://corvetteactioncenter.com/specs/1982.html
Ansonsten hat der Crossfire-Motor keine Schmiedekolben sondern Gußkolben, 76cc Brennkammern, Ventile 1,94 bzw. 1,50 Inch Durchmesser und meines Wissens nach einen 2-Bolt Block.
http://corvetteactioncenter.com/specs/1982.html
Ansonsten hat der Crossfire-Motor keine Schmiedekolben sondern Gußkolben, 76cc Brennkammern, Ventile 1,94 bzw. 1,50 Inch Durchmesser und meines Wissens nach einen 2-Bolt Block.
Race Director
Joined: Aug 1999
Posts: 10,073
Likes: 1
From: Toronto
Re: 82' C§ Crossfire Engine (V8yunkie)
Race Director
Joined: Dec 1999
Posts: 16,945
Likes: 9
Re: 82' C§ Crossfire Engine (V8yunkie)
The L83 engine has forged TRW 464664 L82 pistons, X-rods & a cast crank.
Heads are 462624 76cc lightweight iron castings, open chambers smog heads.
Valves= 1,94 int & 1,5 exh
Intake port size = 158cc
Lift Intake / Exhaust
.050 - / -
.100 44 / 41
.200 101 / 82
.300 155 / 125
.400 182 / 137
.500 196 / 140
.550 - / -
.600 - / -
Block is a 2 bolt mains block. Same as the last year L82 casting except for the 2 bolts. CR is indeed 9:1
Cam specs:
Lobe Center Angle = 115
Intake centerline = 126
Intake duration @ 0.050 = 202
Exaust duration @ 0.050 = 206
Intake lift = 0.403
Exhaust lift = 0.415
For all information about the crossfire go to http://www.crossfire.homeip.net:81 (or if that doesn't work https://www.crossfire.homeip.net )
Marck
Heads are 462624 76cc lightweight iron castings, open chambers smog heads.
Valves= 1,94 int & 1,5 exh
Intake port size = 158cc
Lift Intake / Exhaust
.050 - / -
.100 44 / 41
.200 101 / 82
.300 155 / 125
.400 182 / 137
.500 196 / 140
.550 - / -
.600 - / -
Block is a 2 bolt mains block. Same as the last year L82 casting except for the 2 bolts. CR is indeed 9:1
Cam specs:
Lobe Center Angle = 115
Intake centerline = 126
Intake duration @ 0.050 = 202
Exaust duration @ 0.050 = 206
Intake lift = 0.403
Exhaust lift = 0.415
For all information about the crossfire go to http://www.crossfire.homeip.net:81 (or if that doesn't work https://www.crossfire.homeip.net )
Marck
Thread Starter
5th Gear
Joined: Sep 2002
Posts: 5
Likes: 0
From: Frankfurt HEssen
Re: 82' C§ Crossfire Engine (67HEAVEN)
Many Thanks for the quick response and help. I'm impressed about all the detailed information you have about the engine.
To go on with this topic: I run this engine with TRW cam, Edelbrock Torker II manifold and 600 cfm carb - but I'm looking for some more power.
It sounds to me that the size of the valves and the compression ration and the pistons aren't so bad - so does it makes sense to fit aluminum heads (e.g. Edelbrock Performer rpm) ? What would you do ?
Thanks and best regards,
Hanno
P.S.: Many thanks for the compliment about my English - but I must admit that the translation programs did the bigger part.... :-)
To go on with this topic: I run this engine with TRW cam, Edelbrock Torker II manifold and 600 cfm carb - but I'm looking for some more power.
It sounds to me that the size of the valves and the compression ration and the pistons aren't so bad - so does it makes sense to fit aluminum heads (e.g. Edelbrock Performer rpm) ? What would you do ?
Thanks and best regards,
Hanno
P.S.: Many thanks for the compliment about my English - but I must admit that the translation programs did the bigger part.... :-)
Race Director
Joined: Dec 1999
Posts: 16,945
Likes: 9
Re: 82' C§ Crossfire Engine (Saenger)
The smog heads on the L83 (and the L48 & L82 for these last years too) are the worst heads ever made by GM. They crack easily and make very very poor power. Anything else you bolt on will increase the power. The valves are the small ones w/ 1,94 & 1,5.. some decent 2,02 & 1,6 heads will do fine. The most economic mod would be to fit the L98 D-port alu heads. They have 56cc chambers and really boost the compression. The valves are still the small ones (but they make good low end power), the heads have good swirl and w/ some mods can have very good flow figures too.
If you want Edelbrock RPM think twice, get some AFR 190cc's, they're not that more expensive (especially for us Europeans) and you can't go wrong w/ them.
Marck
If you want Edelbrock RPM think twice, get some AFR 190cc's, they're not that more expensive (especially for us Europeans) and you can't go wrong w/ them.
Marck
