Thread: 1969 350 5.7 small block but which one is it??

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may i also add that does car WILL NOT wheel spin

it revs clean and fast and engine sounds healthy. very healthy actually

but something holding it back.

with it not being able to wheel spin cuz no power to the back wheels this is why i was thinking it could be something to do with ratio?

Originally Posted by Simonz

good stuff, thanks...........

so il take off the rockers tommorro and see what they reveal.

i would like to narrow it down to which engine i got.

the suffix number only covers 307 and 350. does this mean its a 350?

tell you what i was thinking with this puzzle.

originally the car had a 4.1 straight 6 in it because this boddy is a 77 camaro LT.

the guy tells me he took the straight 6 out and droped in a 350.

now with the LTs diff ratio being suited for the straight 6

surley this could be the problem with it now having a v8 with more power? ?

ratio is wrong?

he also told me hes using the original trans TH350 from the straight 6

so basically all in all, its a v8 running thru a straight 6 trans and rear axle ratio.

maybe the problem?

At this point, don't be concerned with your differential and transmission. The ones you have are fine for a fairly tame small block. That's the beauty of Chevy's... interchangeable parts. Most SBCs from that era were/are fairly puny, don't expect much out of it without some mods.
I've had plenty of them that ran and sounded good, but definately weren't tire scorchers.

you may want to count how many times the trans shifts it might be starting in second or high gear or maybe the converter is locking up .......ted

Cheers guys,il be checkin diff on sunday. The torque converter has slight oil weap.wud that b a problem?i can hear trans change 1st 2nd into 3rd,. I took rocker covers off to reveal a number. Think it woz 462624
Have it writen dwn at home .i checkd and said it woz a 79-85.
350 with sumert like 1.91 intake

Also,it doesnt kick dwn wen i floor it in drive. It jst gradualy continues to pik up speed

That casting number is for 1976-1999 350 heads with 76cc chambers.