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WTB 3.4L OHV Build Parts by LittleBigCar
Started on: 04-24-2021 08:39 PM
Replies: 3 (96 views)
Last post by: Raydar on 04-29-2021 09:26 PM
LittleBigCar
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Report this Post04-24-2021 08:39 PM Click Here to See the Profile for LittleBigCarSend a Private Message to LittleBigCarEdit/Delete MessageReply w/QuoteDirect Link to This Post
Building up a CamaroBird V6 for an anticipated engine replacement and before I go shotgunning parts from Jegs/Summit I figured I'd see if I could keep the $$$ in our respective circles.

WTB:

Starter Jig
H272-2 Cam
7730 ECU
19# Injectors
Pistons (bored over is fine)
Pushrods
Lifters
Rockers
Timing set
Dawg-modded intake
Bored out throttle body
Motor mounts
Clutch
Whatever you got for this swap

I offer cash or fiero parts, interesting 2A items, war stories, craft beer, VHS and LaserDiscs, high fives, and the principle services in Dirty Deeds Done Dirt Cheap in trade.

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Raydar
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Report this Post04-25-2021 10:30 AM Click Here to See the Profile for RaydarClick Here to Email RaydarSend a Private Message to RaydarEdit/Delete MessageReply w/QuoteDirect Link to This Post
Looks familiar.
I don't have any V6 parts any more, but I did a similar build, a few years back.

Don't forget headers. They will make a difference.
I'd recommend FOCOA (there are still some around) or Trueleo headers. Maybe a Trueleo intake, unless looking "stock" is a requirement.

Good luck with your project.

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Raydar
88 Formula IMSA Fastback. 4.9, NVG T550

Praise the Lowered!

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LittleBigCar
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Report this Post04-26-2021 04:24 PM Click Here to See the Profile for LittleBigCarSend a Private Message to LittleBigCarEdit/Delete MessageReply w/QuoteDirect Link to This Post
Thanks, been reading your thread from back then.

On Summit and Behrents now doing the shopping. Seems like the 272 cam is not sold very much anymore and even when it is, not with lifters.

Trying to find the right length Comp Magnum pushrods is proving to be a problem too.

What did you end up going with overall? 1.5, 1.52, 1.6 rockers? 2030 or 272 cam? Etc.
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Raydar
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Report this Post04-29-2021 09:26 PM Click Here to See the Profile for RaydarClick Here to Email RaydarSend a Private Message to RaydarEdit/Delete MessageReply w/QuoteDirect Link to This Post
My thread, if I recall, was kind of "piecemeal".

Crane was actually "on hiatus" for a bit, for a reorg. (Bankruptcy?) Some of their stuff became difficult to find.
But there are other cams around that are similar to the 272. I want to say Crower had one with similar specs. Maybe a bit longer duration. 280-something comes to mind.

Many people recommend using only GM lifters. They're more expensive, but that may be for good reason. (10-15 years back, there were a lot of stories about Crane cams - especially 272s - wiping lobes in short order. I never had trouble with my 272.)
My pushrods were nothing special. Stock length. Possibly Comp, but I'm not sure.
I used the 1.52 ("stock" ratio) Comp roller tip rockers. Didn't see much point in going full roller.

Keep in mind that when you approach the 272's lift numbers, you will need different springs, and may need to have the spring seats machined, in order to leave enough room for the coils. Stock springs with a 272 will coil bind. Stock springs with a Crane 260 (which, coincidentally, came installed in the old GM HT 3.4 crate engine) should not bind.

Hope that helps a little.

Edit... 1.6 rockers are, IMHO, a bandaid.
Since you are going to be into the engine, anyway, just buy the cam with the specs you want, and use the stock ratio (1.52) rockers. It's what the rest of the valvetrain was designed for. It's also what the cams are usually designed for.

Also, it's been a while since I did all of this. If I have said anything blatantly ignorant (or just stupid) I hope that someone will jump in.

[This message has been edited by Raydar (edited 04-29-2021).]

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