Puttin' Perfume on a Pig...307 Tech?!

Johnny not sure what you mean. If I raise it, it wont be in contact with oil pump. If I raise that top plate oil spills out all over the place through the top.

 

Set the intake on ..... 2 bolts

 

How will that effect the hole I circled in yellow?

 

This!

Look at the oil galley that runs along the distributor. You'll see that the grove of the distributor (your case priming tool) needs to be in line with the galley. Your priming tool body is to low and oil is going up rather than horizontal to complete it's path. Show us your primer out of the engine so we can see how it's configured.

 

@Jeep 307 SBC if you had a later block (see lower photo) you would clearly see what's happening easier.

Type you have...


Later SBC design...

 

That makes way more sense. If I am understanding correctly, the distributor or oil primer block oil from climbing to that hole if properly placed.

Thank you Johnny.

 

I just did the math on my Ford motor in my "new" car and it's powered by a 307 c.i. motor...
But it makes 460 horsepower @ 7000 rpm....

 

Whats the bore and stroke? JW

 

Bore=3.6614"
Stroke=3.6496"

 

Ford or Chevy.. doesn’t matter are long as it’s a”stroker” .... the magic word to a-holes who don’t have a clue. As the holy grail 383 of strokers followed the first Chevrolet “stroker” a 307.
Their first DEstroker was a 302 and their best was the unheralded 372. All made with stock Chevrolet off the shelf parts. .....a lot of 372’s kicked ass on dirt tracks where 408’s thought they were king s**t.

 

I really like the old 307. I did one for an 86 Astrovan with a mild cam, used aluminum intake, and TBI injection. Plenty of power and got about the same mileage as the roached 4.3 I took out.
I’m getting ready to build a small block for a 61 Impala and I think I’m going to duplicate the same engine including the TBI.

 

Why not a carb????......

 

For cheap reliability it’s hard to beat TBI if you’re not worried about going fast. No cold starting problems, super easy to set up.

 

Doe's the''I'' in TBI stand for Injection? JW

 

Yep

 

That would make it ''TB Injection'' or just ''TBI''. JW

 

It's off topic fellas... Let's not kill this thread please...

 

10/4. JW

 

No problem. On another 307 note, what do you think is the best factory heads to use on a stock short block 307? I think the 76cc might be too big and kill compression but a later head with hardened seats and the accessory holes would be beneficial.

 

In the early 80's i built V-8's for a living and built over 400 motors, just over 36o were SBC and about 25- 30 were 307's. They were a great re power for a lot of cars and 4x4's. I liked them and when the 283 heads were used with a cam out of a 350-400 and a 180* aftermarket manifold they gave decent basic street performance, not high performance by any means but fairly strong. I saw no reason to be putting bigger valve heads on just for street driving but for what they were put in (mostly Aussie Holdens etc) they gave rather good results. This was the same way i built my 301 except for 11:1 compression and that runs very well. We did build a few with post 67 heads but matched the smaller chamber items when possible, i cant remember the casting number off hand but 185 or 186 pops to mind. JW

 

Too bad they are OT.

 

best budget iron heads
305 H.O. heads #416 ( that intake works well too)
Next best will be 305 heads from truck or van.
then your 283 heads.

Haven’t ran the 96-00 vortec heads on one yet but I might soon.

 

305 4-bbl heads #416??? 57cc chambers with 1.84" intake valves and 1.50" exhaust..

 

Scored a complete mid 80's 305 with 416 heads for $75.

 

That aluminum intake works well too.

 

Soooooooooo a 307cu. in. Chevy with a 3.48 stroke crank would be how big?!

If you use a set of heads from a 305 and a 230-240@050 duration cam with a tight (dirt track) LSA 108* I bet it would give a 350 Shivel-lay a run for the money.
6sally6

 

The most feared Chevrolet “stroker” of all time. The dreaded 328.3…If you machine and squeeze a 400” crankshaft into the stock bore 307 you would have the killer almost square mighty 353.7…

 

400 crank in a 307=353.7..(WOW!)..... A great 'cheater motor' for dirt track "stock/renegade" class where the cu. in. limit is 350 + "wear"!!
Ehhhhhhh...maybe not...still restricted breathing compared to the 350 engine.
6sally6

 

About ten years ago i was wondering the same thing. The 1970 and later block should accept the 305 or 350 crank, use the 5.7 rods and a Jeep 4L/2.5l piston. The silvolite 2228-30 is the right diameter for a 0.030 overbore, 1.581 compression height and a 0.931 pin diameter. I think this would put the piston about .005 down the hole. It would require resizing the small end of the rods. This would yield 333ci.