Chevyguy04

Ok, i have a question. Has anyone ever taken a 427 truck block and built a performance motor out of it?

Is it possible to make it into a performance engine for a hot rod?

dacajun

iTrader: (19)

Are you refering to the 427 tall deck block? If so, yes. These are good for building stroker motors due to the taller deck.

-Dave

Villain281H

iTrader: (5)

remember that tall deck motors sometimes require expensive headers when compared to a standard BBC. Otherwise sounds like a good candidate!

Derek

Chevyguy04

WHat do i need to do to make a stroker out of a 427?

What crank and stuff do i need?

Never worked on a 427 stroker

Tiresmokin

Same parts as you'd use to do a 454. I am building a 427 tall deck. 4.25 inch stroke makes a 496 at .060. Not sure if the extra .400 inch deck heigth will be a problem with headers to fit in the 4th gen??

TTSSZ

iTrader: (8)

Saw your other post - the l-36 truck block is a 2 bolt mains but has a forged crank.
You should start with a 4 bolt mains block if you are going over 500hp.

crazycamaro496

iTrader: (2)

I built my motor with a 4 bolt 427TD. Got the 4.25" crank, 6.8" rods and bored it .060" over to get the 496. The extra half inch in the deck height didn't make too much of a difference with the headers. Overall I'm happy with the power my car made, especially for having a peanut cam in it. If you are going to build one, try and get the 4 bolt main block, and stay away from the stock type rods and pistons. The pistons have an extra ring in them and they're just massive while the rods aren't anything special either. I did pull out a forged 427 crank though, that's nice to have laying around for another build.

dacajun

iTrader: (19)

If anyone is lookiing to build a stroker BBC. I have a tall deck block with a 4.5" crank, 4 bolt mains, ARP head studs, O'ringed. I never really considered selling it but it's an extra motor just sitting around.

-Dave

crazycamaro496

iTrader: (2)

how much? what's in the rotating assembly?

Tiresmokin

I may be interested. I was wondering if a 4.5" stroke would work with a stock block and H-beam rods. What's the bore? How much you looking for it 4340 crank?

Chevyguy04

I am talking about a whole different block, i am getting 2 427's one is the L-36 corvette motor, and another is a 427 truck block (don't know all the numbers, i just know it is early 70's) for like 300 bucks, so i figured i would take the truck block anyways and just play with it.

Everyone says i should use a 4 main block, would a 2 main work, i am only need at least 425 hp out of it, i was thinkin of puttin it in the 55 pickup, which used to have a 383 stroker, but found a nice little crack in the block, oh that was nice, so i am motor-less for the time being. Hense the reason i am thinking of building the l-36 as close as possible to an l-72, and puttin it in the pickup for now until the next project is done, which is a 1969 camaro copo clone.

SO any input or ideas, the camaro is base v8 car i picked up cheap and in pretty good shape (but still gonna have a total restore), it is a z28 clone with a 350 in it. I want to make it as close to factory specs as possible. But i haven't been able to find an l-72 block in good shape for a decent price. And ofcourse i know i wont find a zl1. I figured at least a 427 from that era will do.

but i am open for anything so people please start talkin.

I am especially interested in building the 427 stroker

dacajun

iTrader: (19)

The crank is a BRC 4130. This crank will not work on a stock block. A stock block doesn't have a tall enough deck to allow that much stroke. I am not 100% sure on the bore, but it is 4.5" or better. So it is at least a 572. I do have a Dart 4500 intake that can go with it also. I don't have an idea as of how much just yet. Let me give it some thought and I'll decide. This is an extra, as I have a 598 cid Shafiroff in one of my 69 Camaros. I was to maybe build a blower motor with this later on, but Lord knows if I'll ever get around to that.

-Dave

andereck

Modified stock block, yes with steel rods. The pan rails and bottom of the cylinders will need to be ground/milled for clearance. Aluminum rods might require sleeving the oil passageway along the pan rail to ensure against a pressure leak. Usually an engine like this will use a pan with a modified bolt pattern. The retaining bolts will be across from the main caps.

2 bolt blocks are fine up to 600 hp or so. Depends on how you make your power and whether detonation would be an issue. No engine should of course, but if it happens it can pinch off the oil supply to the crankshaft by scraping off the oil with the parting line of the bearing.. 4 bolt caps reduce the chance of reshaping the bore and pinching the bearing under detonation.