I've got an injected olds in my Henry J and am looking to figure out exactly what it is. I was told 303. any help is greatly appreciated.

 

Give me some casting numbers off the back of the block. I am pretty sure 555614 is an easy ID for a 303. Is that a Hillborn unit you have on the 303?

 

I'll post all my #s tomorrow after I get out to the shop. Yeah, it's a hilborn set up. It's got a Wilcap adaptor to mount a Muncie and an aluminum flywheel, 12.5/1 comp., an Erson cam...etc. It was supposedly in a '55 Chevy way back when and ran near the 10s(?), it's been on a stand in the guys garage for 25 yrs. It's fresh but I didn't have it done and didn't get alot of info when I bought it. Sorry for the long wind!!!

 

Another IL guy. Thumbs up.
Where exactly is our armpit?

 

Hah, White Hall, about 50mi. so. of Springfield.

 

Sorry for the delay, fought a screaming migraine yesterday. On the pass. side/top of 'bellhousing'-561747, on drivers side just a 9. On both heads upper left corner- 154, upper right-571870, on lower part of pass head on the land-B 261303, on drivers side of block where head meets it theres a land w/R52767.