357 with 200cc heads
12-06-2007, 02:29 PM
#1
357 with 200cc heads
My current motor is a 357ci with flat top pistons (10:1), forged crank, PM rods, 462 ported/blended & 2.02/1.60 valve'd heads, Torker 2 intake, 650 DP, Torker cam (232/234 @.050 .488/.488 108LSA). My heads are pretty much a bottle neck on any sort of power so I was thinking of using ported out Sportsman 2 heads with an XE284 cam. Refresh the bottom end and keep the single plane. I'd want the around the same C/R. Any thoughts? Obviously with this big of a head I will loose a little bottom end but I'd rather have a bit more top end. I'll be upgrading the valve train as well with some good stuff. Just wanted to get some thoughts and/or suggestions on other parts or certain parts. Thanks.
Also, the car will have a WCT5 and 3.70 gears. I was told with 3500 stall and 3.73 gears this car would run 12's. I somehow doubt that given the nature of these heads but who knows. Anyone shed some light on that? If you want a list of other mods, go to my cardomain page.
Also, the car will have a WCT5 and 3.70 gears. I was told with 3500 stall and 3.73 gears this car would run 12's. I somehow doubt that given the nature of these heads but who knows. Anyone shed some light on that? If you want a list of other mods, go to my cardomain page.
12-06-2007, 02:49 PM
#2
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Car: 82 Berlinetta/57 Bel Air
Engine: LS1/LQ4
Transmission: 4L60E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
Get rid of that intake and you shouldn't have any trouble running 12's. A Performer RPM would be highly superior, but if you really, really want a single plane, at least get a Victor Jr.
12-06-2007, 03:23 PM
#4
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Car: 82 Berlinetta/57 Bel Air
Engine: LS1/LQ4
Transmission: 4L60E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
If the tires stick and the T5 doesn't grenade.
That cam isn't the best either, but the Torker II manifold is a bigger restriction than your heads. Edelbrock should be
for foisting that thing on the public.
That cam isn't the best either, but the Torker II manifold is a bigger restriction than your heads. Edelbrock should be
for foisting that thing on the public.
12-06-2007, 03:32 PM
#5
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Car: 1991 Camaro RS
Engine: 355
Transmission: 700-R4
Axle/Gears: 4.10
Re: 357 with 200cc heads
"I was told with 3500 stall and 3.73 gears..." If you have a T-5 you don't need to worry about stall speed. That references a torque convert which you don't have.
12-06-2007, 03:36 PM
#6
Re: 357 with 200cc heads
I was told this when the car had the auto still in it. I guess I'll throw the Air gap on the motor and see what happens before I change the top end. The cam isn't big, I agree with you but I don't know how much my heads can take. I was thinking of using 1.6 rockers.
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