BBC TBI Swaps Suck!

[lolife99]

Scot,... I know a guy that use to put on the early (late 60's-early 70's) oval port heads and intake,... and used a tbi adapter to keep the engine fuel injected.
He swore it was worth 100 hp.

Some good info here:
http://www.tbichips.com/454ss.htm

[SCOTI]

Originally Posted by lolife99

Scot,... I know a guy that use to put on the early (late 60's-early 70's) oval port heads and intake,... and used a tbi adapter to keep the engine fuel injected.
He swore it was worth 100 hp.

Some good info here:
http://www.tbichips.com/454ss.htm

I've e-mailed them & we've been back & forth discussing options.

Weird thing is they recommended switching to a larger 750cfm TB & a single plane intake if I switched to the sbc (I wanted to utilize a Edel Perf-EGR intake I already have w/a TB adapter). They also recommended I not 'waste' the AFR's I thought of using (that are just sitting on a shelf gathering dust) & go w/Vortecs (different rockers, different tins, different intake, yada yada yada...).

As far as the standard ovals (vs the peanut ports), you can't find anything w/a small enough chamber for the smog blocks dished pistons. Go to an earlier block & you don't have the provisions for the electronics.

It makes me want to yank the TBI to swap in a spread-bore & HEI.
KISS....

[SBTork]

Originally Posted by SCOTI

I've e-mailed them & we've been back & forth discussing options.

Weird thing is they recommended switching to a larger 750cfm TB & a single plane intake if I switched to the sbc (I wanted to utilize a Edel Perf-EGR intake I already have w/a TB adapter). They also recommended I not 'waste' the AFR's I thought of using (that are just sitting on a shelf gathering dust) & go w/Vortecs (different rockers, different tins, different intake, yada yada yada...).

As far as the standard ovals (vs the peanut ports), you can't find anything w/a small enough chamber for the smog blocks dished pistons. Go to an earlier block & you don't have the provisions for the electronics.

It makes me want to yank the TBI to swap in a spread-bore & HEI.
KISS....

the bold/italic lettering is what I was thinking. You'll be happy with TBI but in the end it will never be enough, nothing will. We ALL have the disease.

[SCOTI]

I sure wish I would have found my 'ahh-ha' item w/the pre-mature failure. Bottom end looks clean.
Lifter valley looks clean.
Top of heads look clean. No obvious breaches @ the head gaskets. End pieces of the intake gaskets broke off when removing the intake so it's difficult to tell there (it doesn't look like there's been a long time issue).

Lots of metallic floating around. I guess the rod and/or main bearings seized to the crank. Double row timing set & 4-bolt mains. The number on the top side pad matches the VIN number so it's in pretty good shape for the OE block. I didn't expect the pistons to look like they did so I'm researching the p/n's tonight. Rod ends were numbered so maybe it's been apart @ some point (did they stamp OE stuff?). IDK....