bbc guru's

[blazin_blazer]

i have my 1st 454 & i know nothing about it, a little info please.

1st-its what i believe to be a stock 87 tbi engine, i pulled it from a 87 2wd srw 3+3.

i want to put it in my 84 k10, and i'm ditching the tbi for a carb, when i look at intakes, they list oval & rectangular ports, which would a stock 87 bbc have?

while i got the intake off i thought i would loosen the oil pan and remove the timing cover for a new cam & lifters & timing chain....nothing radical, something like comp cams xtreme energy 264 or 268, would it have a roller cam or just regular old hydraulic lifters? with the aforementioned stock heads would i see any low end tq improvements or am i shooting myself in the foot & should just do a dual plane aluminum intake only?

 

[4X4HIGH]

First off you're crazy to ditch the FI. The engine will have oval port heads and probably the peanut port oval heads. The engine will have a flat tappet hydraulic cam, BBC's didn't get a roller cam until the Gen V engine came out.

 

[80' 427]

If it was me I would leave it as is with maybe a MILD cam change. They seem run just fine as is. I wheeled all weekend with my stock 78 454 and it had more than enough power.

 

[viperrgh2]

Oval port heads/intake and I haven't been able to find much of a head option good for our trucks.. I have a tall deck motor, the truck heads flow at very low rpms... I have a pair of 454 heads (same as your motor) I plan to port match, along with my unknown size after market rv cam already installed I plan to make plenty of power...

 

[blazin_blazer]

i would love to keep the tbi, but i want this to be a 1-2 day swap not a month long ordeal, and this is my 1st tbi motor as well as my 1st bbc,...i'm not sure what all i have to swap over and what i have to leave on to swap the tbi on, i know i would have to run a fuel return line also. can i pull the pump and float out of the 87 3+3 and it fit in my 84 tank, are they the same size hole and the locking ring the same. any good write ups on swapping to tbi in a non tbi truck? i've searched and all the tbi swaps i read about was already a 350 tbi.

 

[82355]

i would love to keep the tbi, but i want this to be a 1-2 day swap not a month long ordeal,

It would take just as much time to swap a carburetor on correctly. I can think of no reason for you to not use the EFI.

Martin

 

[80' 427]

If you don't use it send it to martin. I am tired of breathing unburn hc from his bouncing holley.

 

[82355]

Good point. If I was you, I would definitely go carbureted, and sent all that EFI junk to me.

Martin