Recent content by Houtan

There is some ways to save this sticker like apply a very tin layer of clear wood glue on it, they are white but will become transparent when dry or you can use some very small amount of universal glue behind parts that came out but such works are precise and you should know how to restore...

Hi everyone, On 455 engines there is a hook on the front passenger side of engine for lifting the engine, On original 455 Buick brochures it is red same color as the engine but those brochure pictures that are mostly drawings usually are not accurate. Those hooks have a black plastic/rubber...

Hi everyone Anyone here installed those VIR eliminators before? are they work better or worse than original VIR, My engine is 455 stage 1 and it is early VIR not EEVIR. if those VIR eliminators can produce better cold air, or less pressure on engine and compressor I can convert my VIR. That...

Hi everyone, Do we really need fixed Idle air bypass on Quadrajets? I tested two type of Quadrajets first my original 455 stage 1 Quadrajet ane secont I have a Quadrajet from 1968 Pontiac GTO. both of them on my 455 stage 1 when I tap close the fixed idle air bypass my Idle will goes better. do...

Thanks Larry, I checked parts when I started to overhaul the engine, The distributor`s body number is 1112521 3H 2 and its vacuum advance number is 520 10, I`m third owner of the car and all parts as I checked on engine bay and rear end was matching numbers but I`m not sure about vacuum advanced...

Hi everyone, I have a question about vacuum advanced on 455 stage 1 engines, In 1974 455 Stage 1 vacuum advanced was 10 degrees, non stage 1 engines was 18 degrees. I overhauled the engine and changed compression ratio higher, also get rid of 1974 emission parts and used street strip camshaft...

Hi everyone In 1974 Buick shop manual for A bodies we have 37 AMP (1100947) as Alternator standard, for air con models 42AMP (1100926), that both are 10SI models, but we have also police pack option alternator that is 80 AMP (1101018) that I guess this is a 27SI model alternator, If I`m wrong...

I`m in middle restoration my 1974 century gran sport 455 stage 1, now I found out previous owner had changed the transmission and installed a BC-69 th400 on the car (from a 430 Wildcat or Electra), I know BB-70 are unique and different with other BBs but want to know what is differences between...

Thanks bob, I guess the Dexron B or later formula (Type A etc.) have sperm whale oil additive and from 1973 sperm whale oil was banned in the US and Dexron II C is new formulation for 1973. They used some herbal oils like Jojoba as additive on them. Dexron II C had corrosion problem and they...

Hi everyone, I want to change TH400 transmission fluid in my 1974 GS 455 Stage 1, There is Dexron II D, Dexron III G and Dexron VI available here, Dexron III has lover viscosity than original Dexron II and Dexron VI is even lower, My question is what is my benefit on going for lover viscosity...

Hi everyone, I have question about about original 1974 Century 455 GS stage 1 original AC compressor, when I bought the car there was no AC compressor and it`s wiring on the car. Please help me witch model A6 is correct original on this engine, If I good remember stage 1 models have bigger belt...

Thanks Todd for the catalog pages, I found today a 90Ah battery very high CCA. I don`t know what group size it is (11.88x5x7.87 inches) but my GS is 1974 and it fits really nice in there. This was most powerful battery with acceptable size. I hope that my Alternator can handle it, It is...

Hi everyone, Does anyone knows what was ampere rate of Delco Energizer R89S and C89? I want to change my battery and want to chose the right battery, In shop manual R89S is standard and C89 optional for 455 engines and I need their specs for choosing best battery from new batteries.

Hi everyone, I have Non clutch 7 blade fan and 7 and 5 clutch driving fans, I guess original fan for 455 with AC was 5 blade clutch drive fans, now my question is witch system is better for 455 stage 1 engines, Original 5 blade or non clutch 7 blades? I want to use 160 degree thermostat and my...

Hi everyone, In restoration process now is time for tires, please let me know what was the original 1974 Buick Century Gran sport stage1 tire size from witch tire brand and what is closest new modern tire size to the original ones?