Make your own free website on

Quick Specs

Type  Trans   CID HP Torque
93-95 LT1 V8
A4,M6 350/5.7 275@5200  325@2400
95-97 Dual cat LT1 A4,M6 350/5.7 285@5200 325@2400
SLP Firehawk 93-95 A4,M6 350/5.7 300 340
SLP Firehawk 96-97 A4 M6 350/5.7 310 340
SLP WS6 SLP SS A4,M6 350/5.7 305 335
97 LT4 110 SS, 30 Firehawks  M6 350/5.7 330 340

                                                    Rear Gears

A4 3.23 2.73
M6 3.23 2.73
A4 2.73 3.23 
M6 3.42
A4 2.73 3.23 
M6 3.42
A4 2.73 3.23 
M6 3.42
A4 2.73 3.23  
M6 3.42

1993- 4th gens F-cars are introduced sporting an all new look from an all new car. The only motors that are available in the new F-cars are the 3.4 Liter V6 which replaced the 3.1 and the LT1 which replaced the three V8 choices third gen buyers had, L98, LB9 and L03. The LT1 is still a SBC, how ever it is very different from the predecessors it replaced. The LT1 has a reverse flow cooling system, cooling the aluminum heads first allowing for a healthy 10.4:1 compression ratio. Also the LT1 has an optical distributor mounted on the front of the motor under the new cam driven water pump. The engine management is similar to the ones used in 90-92 era TPI cars, a speed density system with a removal PROM chip. The trans choice for auto buyers is a 4L60, which is a 700R4 with a different case connector and extra check ball in the valve body. Six speed buyers in the Trans Am got a M29 wide ratio Borg Warner T56 standard, with 3.23 gears. Z28 and Formula buyers how ever could get either the M29 or a different M28 Borg Warner T56 which came with 2.73 gears. The rear end is the GM Corporate 7.5 inch 10 Bolt, still a solid rear axle in the new 4th gens with a rear suspension unchanged from third gen era cars. Major changes were made to the 4th gens front suspension how ever. The 1993 Camaro was the pace car for the Daytona 500, Chevy built 650 special edition pace cars. SLP was also turning Firehawk edition Firebirds, which saw a slew of modifications to the suspension and brakes as well as a specific hood, this again was only available on Formula models. 

1994- GM made several changes in 94 as it began phasing LT1s in the B-body line, the cars were using now a PCM. With PCM the computer controlled the trans as well as the engine. In Autos it meant a 4L60E which was computer controlled, in the newly geared for 94 six speeds it meant CAGS, a 1st to 4th lock out under partial throttle. There would be only one T56 option for 1994. Engine Management was now Mass Air Flow. Along with the new system came new fuel rails, the cross over tube now on the front, these new rails housed 24lb Injectors. The standard  rear gearing for the six speed would be 3.42s to better suit its new internal gear ratios. 1994 marked the 25th Aniv of the Trans Am, a special commemorative model was on option for TA buyers. It featured white leather seats, white exterior, white wheels and a blue stripe. Other wise it was the same as a Trans Am GT. The Trans Am GT option of course was a Trans Am with 3.23 gears for the auto, 3.42s for the manual, Z rated tires, high level spoiler and a 155mph speedo. Z28s got new white lettering on their gauges but the car remain unchanged cosmetically other wise. The convertible was also back for 1994.

1995- The main change is a new Vented Opti Spark, which used a vacuum/air harness that drew air from the intake elbow. The Cam dowel pin changed as did the front cover and timing chain to suit the new vented opti.  Spoked rims for the Firebird Formula and Trans Am, very similar to the 16X8 25th Aniv TA wheels only a year before. SLP starts production of a special Comp T/A, which was rated at 305 horses, It was what was to be the WS6 Trans Am SLP would build for the 96 model year. the car was silver with a special stripe. GM used performance wheel maker Speed line makers of such cars as Ferrari fame designed new wheels for the Firehawk which were the Comp TA wheels. Pontiac also put in a new steering wheel. 1995 LT1s also saw a OBDII style PCM data port.

1996- 96 marked many things, for one OBDII which entailed dual cats, crank postion sensor and a new PCM. GM raised the HP rating to 285 for this year. GM introduced two new performance options, the WS6 package for your Formula or Trans Am and the SS package for your Camaro. SLP built these to performance options, the package added a Ram Air intake system, Freer flowing exhaust, Higher rate front springs (360lbs/in) Variable rate rear springs (130-180Lbs/in), Stiffer front and rear shocks, Harder 1lE bushings, Larger diameter front anti sway bar (1LE 32mm), Increased cooling, 17inch wheels with 275/40ZR17 tires.

1997- This would be the last year for the LT1, in 96 GM dropped the B-Body, turning the Arlington plant in to a truck assembly plant and in 97 GM would unveil the new C5 with the LS1 V8 Gen III Small block Chevy. How ever changes were made, Camaros got a new tail lamps, new interior, with a redesigned dash and console. All F-bodies now had digital odometers and trips. The 97 interiors would carry in to the LS1 cars to the end in 02. 97 marked the 30th Aniv for Camaros, so GM made a commemorative Z28 with white exterior and hugger orange strips, the car also featured white wheels and white leather seats. SLP decided 110 select Camaros and 30 hawks would get the 96 Corvette LT4. The LT4 was a factory modified LT1, with better revamped LT4 heads, LT4 intake manifold, LT4 fuel rails, 1.6 Rockers, better starter, revised exhaust manifolds and a few internal modifications.


Return to Main Page