Resurrecting a Totalled Toro

v8widowmaker · 05-14-2008, 11:30 AM

inherited a motorcycle trike project about 2 years ago. The person who gave it to me passed away before he could tell me what year or model of Oldsmobile he had used. All I know is that it was an Olds, front wheel drive V8. The engine, I was told is good, so it's worth pursuing. The only numbers I have been able to get from the motor/transmission are the following:

I believe it's a big block, I read that if the width between the valve covers is 14" it's a big block. It's just at 14"

Here are the #'s

409/147 On both sides

7A by #1 (i think #1, it's the front drivers side cylinder)

The transmission had a plate with the following numbers if this helps

v8widowmaker · 05-14-2008, 11:32 AM

81 AK 7620

The_Jeremiah · 05-14-2008, 11:33 AM

7A would be small block heads im pretty sure

J-(Chicago) · 05-14-2008, 02:18 PM

If it's a big 7 and a smaller A, the heads are 72 350 heads.
If it's a big 7 and a big A they are Olds 307 heads.
The block casting number will be right by the oil fill tube on top/behind the water pump.

395558 2 would make it a 350.

joe_padavano · 05-14-2008, 02:58 PM

409147 is the casting number for the 1972 7A heads. This implies that the motor is also a 1972 350, but who knows.

05-14-2008, 11:30 AM	#1 (permalink)
v8widowmaker Junior Member Join Date: May 2008 Posts: 2	Resurrecting a Totalled Toro inherited a motorcycle trike project about 2 years ago. The person who gave it to me passed away before he could tell me what year or model of Oldsmobile he had used. All I know is that it was an Olds, front wheel drive V8. The engine, I was told is good, so it's worth pursuing. The only numbers I have been able to get from the motor/transmission are the following: I believe it's a big block, I read that if the width between the valve covers is 14" it's a big block. It's just at 14" Here are the #'s 409/147 On both sides 7A by #1 (i think #1, it's the front drivers side cylinder) The transmission had a plate with the following numbers if this helps

05-14-2008, 11:33 AM	#3 (permalink)
The_Jeremiah Senior Member Join Date: Jul 2007 Posts: 243	7A would be small block heads im pretty sure __________________ 69 Cutlass 4 door. Built 350 inside, grandma's grocery getter outside. Best sleeper in disguise.

05-14-2008, 02:18 PM	#4 (permalink)
J-(Chicago) Seasoned beater pilot. Join Date: Jan 2007 Location: Chicago Posts: 1,537	If it's a big 7 and a smaller A, the heads are 72 350 heads. If it's a big 7 and a big A they are Olds 307 heads. The block casting number will be right by the oil fill tube on top/behind the water pump. 395558 2 would make it a 350. __________________ I'd rather have a numbers matching poker hand.

05-14-2008, 02:58 PM	#5 (permalink)
joe_padavano Moderator Join Date: Mar 2007 Location: Northern VA Posts: 1,535	409147 is the casting number for the 1972 7A heads. This implies that the motor is also a 1972 350, but who knows. __________________ Joe Padavano 64 Jetstar 88 Conv 66 442 L-69 Conv 68 W-30 69 H/O 69 442 70 W-30 72 442 84 Custom Cruiser 86 Caprice wagon (w/307 Olds)

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05-14-2008, 11:32 AM	#2 (permalink)
v8widowmaker Junior Member Join Date: May 2008 Posts: 2	81 AK 7620

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