1970 Olds Cutlass S Rat Rod Style

[olds307 and 403]

So since I installed the 403, my Qjet was very lean at idle and part throttle. I am shocked it actually idled and drove so well. No bogs or hick ups at all. I went maybe a 1/4 turn on the idle mixture screws and one turn out on the APT. Much better no longer 15 to 16 at idle and no more 16 to 17 part throttle. Now 14's at idle and maybe 15 at part throttle. The full throttle AFR is still 11 to 11.5 even with the leaner AY secondary rods from the CV rods. I currently have a G hanger on there. I may try my V hanger, which should lean it out considerably. I will test😁 and report back.

 

[olds307 and 403]

Actually the leanest hanger I have is a P. With the leaner AY rods and the P hanger, very high 11's to 12.28 full throttle AFR. Perfect.

 

[olds307 and 403]

My Wife's eyes were bugging her so she didn't want to go fishing on our local Reservoir😱. So I finally installed the Inline Tube direct replacement throttle cable. It fit as stock. I liked the aftermarket locking clip, so I used it over their hair pin clip. I also didn't use the rubber grommet and center tube. The cable sits on the large in piece on this 78 403 800 cfm Qjet. I added two extra washers on top of the one included, so it can't slip off the larger portion closer the linkage edge.

 

[olds307 and 403]

This arrived. It looks really well made. I like the idea of a pan mounted dipstick. Canton having that option is just another reason to run one.

 

[Rktpwrd]

How do you like the Canton pan Christian? Have any pictures of it, does it have an internal windage tray like the Moroso? I have the Moroso pan on my 455 and while it’s ok, I’m always on the lookout for better alternatives.

 

[Clutch]

How do you like the Canton pan Christian? Have any pictures of it, does it have an internal windage tray like the Moroso? I have the Moroso pan on my 455 and while it’s ok, I’m always on the lookout for better alternatives.

As am I the last pan I ran was a slightly heated hammered and dollied toro pan

 

[olds307 and 403]

It is baffled and has a swinging side baffle. It is a better pan than the Milidon or Moroso. Both of those have had leak issues turning into huge cracks in some cases.

 

[olds307 and 403]

Still waiting on the second machine shop for the 358. I picked this up months back, not cheap from Monzaz. A high quality Yukon posi to go with the 3.08 gears that got a while back. The Stainless Chinese passenger side header fit perfectly. The drivers side hit the mount. I tried a couple of hits with a big sledge hammer, barely left a dent. I tried heating and a come along, nope. My Daughter's Boyfriend thought of this. Used long bolts and exhaust clamp ends with heat, the tube should be moved enough to clear the motor mount. I also removed most of the dent in the collector with heat and a tail pipe expander. More to come soon.

Before

 

[olds307 and 403]

So, I set up my 350 block with a number 8 head and a used Felpro head gasket and the original 70 motor mount. I pryed the tube as much as possible, still hit the mount unfortunately. So heat and a hammer and it barely fit. I will use a factory motor mount heat shield, I have two somewhere. I will use on both sides. Not ideal but not the first set of hammered headers. They are extremely well made, not thin metal and decent Stainless. Here is the before and after on the collector dent, quite a bit better.

 

[olds307 and 403]

So now that it is officially Winter, well has been for nearly a month, time to work on the Cutlass. I swept snow off the 70 and the rest melted off, warmed up this week. Before more snow could fall, into the garage it goes. I got all the fluids drained from the engine and trans. I am going to pull both. The trans is getting a CK pump, CK's improved GN servo, shift kit and all new seals, including a new 4L60E filter in the deep aluminium pan for the 2004R. The 3rd use of the Edelbrock Performer cam was not the charm, at least one lobe is gone. The 403 has decent compression, 150 to 160 psi. The oil pressure is on the lower side, bearings were so so but the crank looked really good. I will probably go with another 204/214 cam or similarly mild flat tappet with a minimum 112 LSA, new standard rod and main bearings. I flushed the 73 Oldsmobile valve covers until no more blasting grit came out of the baffles. When the 350 comes back from machine shop jail, I want this motor for 88 to 95 Chev/GM 4x4 to run the factory TBI and should run OK on 87 with the lazy sbc timing curve. I would probably like the open loop parameters modified to run better cold. So the Performer intake will stay on this motor, idle to 4500 rpm is the target. I finished paying Cutlassefi for my RPM EFI conversion, injectors and the rest of the parts. He is dropping off the new Sanderson headers to be coated. I am pulling off this current exhaust with half rotten, 15 year old coated Sanderson headers. Since I got the drivers side full length header clearanced, the Stainless headers, cats, pipes and straight through Flowmaster mufflers also Stainless in 2.5" will ho in, no crossover pipe for now. Current has a compact X pipe. The Dynomax Superturbo mufflers are too quiet for my liking, these should be a bit more aggressive. I will start tearing it all out over the next few weeks. Once the motor and trans is done then I will get new bearings from Monzaz and the used 3.08 gears and pricy Yukon posi installed in the Type O rear.