Reuse parts or buy new?
12-21-2015, 10:40 AM
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Reuse parts or buy new?
Greetings all...I have been trying to weed through all of the threads and stickies about which route to take and what I will need and it is a wealth of information so just trying to get some opinions and recommendations, so here goes:
I have a 92 RS that has a stock 305 TBI with 700r4 trans and rear gears of 2.73. I just purchased a 350 block that was from a 91 vette. The block has the knock sensor still in it so not worried about that and know I need to upgrade the fuel injectors and fuel pump. I know the accessories will all transfer over from the 305 but I am considering going with new parts for the intake, throttle body, accessories and headers and just looking for recommendations on what parts to go with? Also with the Computer, should I look for a 350 computer to just swap in or can I tune the 305 computer for this swap? Appreciate all the help, just a noob with my first project car.
Here's the description on the 350 block:
Rebuilt 350 2 bolt main block
ZZ4 crate motor/corvette Aluminum heads
LT1 Camshaft
Double roller timing chain
GM performance valve springs
Hypereutectic Pistons on Pink Rods with King rod and main bearings
High volume melling pump
Not looking to go for massive power, but plenty of life. Recommendations on Intake/Throttle body/etc...? Thanks in advance
I have a 92 RS that has a stock 305 TBI with 700r4 trans and rear gears of 2.73. I just purchased a 350 block that was from a 91 vette. The block has the knock sensor still in it so not worried about that and know I need to upgrade the fuel injectors and fuel pump. I know the accessories will all transfer over from the 305 but I am considering going with new parts for the intake, throttle body, accessories and headers and just looking for recommendations on what parts to go with? Also with the Computer, should I look for a 350 computer to just swap in or can I tune the 305 computer for this swap? Appreciate all the help, just a noob with my first project car.
Here's the description on the 350 block:
Rebuilt 350 2 bolt main block
ZZ4 crate motor/corvette Aluminum heads
LT1 Camshaft
Double roller timing chain
GM performance valve springs
Hypereutectic Pistons on Pink Rods with King rod and main bearings
High volume melling pump
Not looking to go for massive power, but plenty of life. Recommendations on Intake/Throttle body/etc...? Thanks in advance
12-21-2015, 12:58 PM
#2
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Car: 89 Firebird
Engine: 355 TBI
Transmission: 700R4
Axle/Gears: 10 Bolt.Posi-3.73s
Re: Reuse parts or buy new?
You can buy bigger injectors, ported throttle body, carb to throttle body adapters to run different intakes. Then the headache of tuning it comes in. U can take a chance and buy a custom chip for your setup or learn to burn your own. Or you could go with a more performance route which is a simpler and cheaper alternative..carb
12-26-2015, 11:11 AM
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Car: 75 Beast
Engine: 383 +EBL Flash
Transmission: 700R4
Axle/Gears: 4.11 with 33"
Re: Reuse parts or buy new?
Carb - why?? Leave it in 20th century where it belongs.
Tuning EFI is simpler and results in better all around drivability. Yes, there is a learning curve and equipment upgrades. I sure do not miss cold starts.
On your 350 build - you did not mention what kind of AL heads are you planning to run on top your short block.
There are a lot of guys run LT1 cam in their 305 / 350 setups. Any modern AL head would be an improvement over GEN1 CI heads. You're looking at easy 330 to 360 HP range with decent intake and exhaust system. To get there you'll need fuel and stock GM TBI will be stretched to its limits even at higher fuel pressure (25 to 28PSI) - you are working with two injectors! Do a bit of investigating before choosing your path.
//RF
Tuning EFI is simpler and results in better all around drivability. Yes, there is a learning curve and equipment upgrades. I sure do not miss cold starts.
On your 350 build - you did not mention what kind of AL heads are you planning to run on top your short block.
There are a lot of guys run LT1 cam in their 305 / 350 setups. Any modern AL head would be an improvement over GEN1 CI heads. You're looking at easy 330 to 360 HP range with decent intake and exhaust system. To get there you'll need fuel and stock GM TBI will be stretched to its limits even at higher fuel pressure (25 to 28PSI) - you are working with two injectors! Do a bit of investigating before choosing your path.
//RF