I am thinking about putting a 383 in my 85' 5 speed t5 world class transmission Trans Am. It currently has a 305 in it. I'm wondering what mods i would have to make and how much it would cost to make the 383 engine work.

I am planning on road racing this car and am wondering which would be the better engine for doing this. I have heard that since the 305 will run higher rpms it might be better for road racing.

Thanks for your help.



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85 Trans AM
305 5sp
Plan on Road Racing
180,000 miles
Needs some TLC

 

better check your rule book first ,i was thinking scca had a 310 limit. for road racing a strong engine is one of the last things you need (all things considered). you'll need the very best brakes a nd rotors you can find, all the suspension parts and up grades and a good manual trans.

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ICON Motorsports

1st & 3rd

 

Absolutely correct. 310 is SCCA's limit, they also require an edelbrock intake, a holley carb, a certain cam spec and a compression limit. concentrate on the chassis and safety before you delve into the motor.
For example, i race a 1969 Triumph Spitfire in G-production at Waterford Hills in mich.
i set thye recoed lap time last summer for my class with a 1:15.82. The AS (class for camaros and mustangs) record is a 1:16.8, and my spitfire has 110 horsepower!! Handling and braking are HUGE!!
Also if you are building a roadrace 310, Engines by JB build some kickin motors, i will look for a phone# GOOD LUCK

 

in the road races that i am planning on participating in it is leagal to have any type of engine you want

 

Better off to upgrade to a T56 6-speed.

The T-5 is marginal behind a 350.

305's sometimes get the better of a T-5

Spend some $$$ on upgrades if you do a T-5

What kind of road racing are going to be doing...Open?

 

YES ITS OPEN