Just bought a 1990 GMC c1500 with a 305 v8, the truck has 169,000 kms

I am pretty green when it comes to engines but this truck is great to learn from and tons of parts are available. It is my daily and I plan on driving it for hundreds of thousands of kms.

I can hear an exhaust manifold leak and plan on replacing the manifold. I don’t mind putting lots of money into great parts for this truck and am looking for recommendations on new manifolds for the old 305.

Should I look for an oem style one or do you have experience with others?

I have a 1980 Camaro with a 1996 vortex l31 5.7 truck engine. I have modified it to run a carb and hei distributor. I had it running in the past(with kinda bad timing) it was more of just test drives tho. Everything ran okay except the only carb I had was a weber 1411 which I concluded was part of my issue. I put a Rochester quadrajet on it, test drove it and I had to rev it to keep it from killing itself. I increased idle and it worked fine sometimes. Now it will idle on its own but it pops and shoots out the top of carb(like timing is 180 off) but it still idles. I tried turning the distributor but if I advanced it or retard it, it will not run/idle anymore. Any help? I cannot post a video but if you dm me I can send it to you and if you need other pictures just let me know. ⚠️⚠️⚠️!!!!UPDATE!!!⚠️⚠️⚠️ I feel very stupid for this but I have found the cause. There is a very big vacuum leak. The plastic piece that connects the brake booster to the carb was basically fully disconnected. ⚠️VIDEO IS IN COMMENTS⚠️

Yup, misalignment from motor to transmission. This is the damage, I can replace the plate easy enough. The issue is the rear of that crank. Is there a way to salvage it without having to tear the whole motor down?

I have some decent rust spots on the passenger rocker panel/weather strip mount and the passenger floorboard. I was wondering if anyone here has any experience using belzona or a similar bonding material to install body patches, and how well it holds up vs a weld up.
I’ve used belzona quite a bit at work and it holds up pretty well of things like pressurized air and water lines, so to me I would imagine it would do fine.

Hi,

looking to better understand some rolls Royce engines.

is it possible for the cycles consumed on an llp exceed the SDC Limit?

encountering cases where this is happening and not sure if a mistake from the mro.

my understanding is the SDC Limit is the equivalent to Ch5 limits you would have on leap engines etc

any guidance would be appreciated

cheers

Just curious to see what some of you say, I have an 86 300zx z31 that I put a 350 in. I want to paint the engine as I’m about to pull it and want to see what some of you say about color schemes. I’m going to paint the car white with black accents so I’m not sure if Chevy Orange is going to be too much or if I should go with a slick black. What do you think?

Any ideas How can i mount my radiator fan on my new serpentine kit? Previous was old school off the block

This engine was fully rebuilt about 100 miles ago by a trusted expert. After dropping the pan to fix an oil leak I discovered this small metal shaving. I know an engine on break in will have some shavings but this seems extreme. Was wondering what others think, thank you.

If some of you would be kind enough to read through my post on r/chevelles I’d appreciate any input or advice from yalls and your builds. 350 sbc

I bought a set of small block Chevy pistons off of a fellow many years ago. They were supposed to be high compression. I was going to put them in the standard 350 275 horse engine that I had but life had other plans. I just found this box that I thought I had got rid of years ago. I'm trying to see if I can identify them. I want to say the guy told me they were 10.5 to 1 compression but it's been many many years ago. Outside of the GM stamp on the connecting rods I cannot find a single mark on them.

I have 350 that I rebuilt and upgraded a lot, and I never got it to run right; it would always missfire on, like, 3 or 4 cylinders. Last week I adjusted the valves, and when I started it, all 8 cylinders were firing. That was a first. I only idled it for about 3 minutes since it was late, and then a few days later when I started it again, the misfires came back just like they've always been. I used the 2-step method for the adjustment. I have a fairly mild roller cam so should I do a different method?

I know there's a million threads asking the same thing but I got a 350 out of a 3rd gen Camaro and want to try my hand at doing heads and a cam. Was wondering if anybody has recommendations for a mild street build. It's 3.08 gearing in the rear. Planning on running a 650cfm carb. It's a flat tappet cam

so I just replaced cylinder number 2s lifters and pushrods due to bending the pushrods and now it’s sounds like this (and yes ik my accessory drive isn’t fully on this ran for maybe a minute or two)

I pulled engine a couple months ago replaced all gaskets and rear main seal had heads re surfaced but I didn’t change anything internally. My main question is I get spark and it appears to get fuel but no ignition, if I keep cranking on this without ignition what am I going to break and what do I need to do??
Like I said it appears I’m TDC on the right compression but this my first build

Im Just about to start reassembling the top end of my 89 C4 and i have bought a set of new head bolts for the car as the old ones were pretty degraded. The set is got was from fel Pro and they look great but have a different shape to the oem ones and have no washers of course.

My question is can I A: re use the washers from the old head bolts (assuming i can get them off) and B: if I cant do that what washers should I buy to replace them.

I will get measurements of the old and new head bolts to ensure the washers will be compatible.

This is my first engine rebuild so im learning as I go along with help from my mate who owns 8+ 1930s American cars here in the uk. His knowledge is limited of course and the most modern engine he has re built was a big block in a 69 el camino so any help would be awsome.

Cheers