can a 91 305 engine that has the throttle body be changed over to run a carb and edlebrock 2101 intake? its the 86 and ealier intake.
I believe you need the Edelbrock 2104 for a 86-92 SBC. They changed the angle on the center intake bolts.
http://store.summitracing.com/partdetail.asp?part=EDL-2104&autoview=sku
could i just change the heads to the old style?
yes it should have centerbolt heads which will need 87 up intakes. but not 100% sure on the TBI cars. think so but check to see if your valve covers are center bolted
and yes change the heads it should work fine
Same as I thought. What if he would use a set of older style heads?
Doesn’t the 2nd gen blocks flow water in reverse? Would that be an issue with the older heads?
LT1 was 93+ which was reverse cooled… i dont think there is any difference from 86 previous heads to the 87 up heads other than bolt hole angles and centerbolt valve covers
86 through 92 are still 1st gen SBC. 2nd gen started with the LT1 in 1993.
Yes, he could change the heads to earlier heads then the 2101 would fit.
Looks like your getting a 305 with old heads…
I didn’t relize that. I thought 87 started the 2nd gen. THanks for the info. did anything other than the rear main chance in 87?
Factory hydraulic roller cams debuted in 1987 as well.
yep 87 was roller cams, 1 pc rear main seals, different intake/head bolt holes
Not that I don’t believe you guys, but why is it when I hit the advance auto web page, it tells the water pump for a 1991 firebird 5.0L is a reverse rotation pump?
Serpentine drive requires reverse rotation water pump. Standard belt drive requires forward rotation water pump. It all depends on the drive system. Serpentine belt loops back around the top of the pump requiring a reverse rotation pump.
Thanks. Was thinking that after posting, but firgued I would wait on the experts…
can i just eliminate the serpetine system and put my old belts on? will the water pump and alternater from the older style bolt on in place of the serpentine?
Answer to your original question…yes the old style intake will work on TBI heads…you just have to egg out the 4 center holes…hope this helps.
Your old water pump and alternator should bolt on but you will have to use all the associated bracketry that goes with them.
Yeah, you can elongate the holes on an intake, but the bolt heads on the inner four bolt holes will not sit flat against the intake and could crack it. There are angled spacers available to take up the slack, but I don’t remember who makes them.
Do you mean the bracketry that goes with the old equipment, or the bracketry from the new style motor?
The bracketry should stay with the accessories, not the motor.
Use the old stuff with the old alternator, water pump, power steering, etc.
Cool thanks for the info…