BBC 396 stroker

[Alan Roehrich]

Can't compare this engine to superstock engine my steel headed 468's usually run 9.90's 10.o's @3200/3300 these heads went
Low 10's on a 468 with the same cam shifting at 7600 I think with a looser converter and spinning it higher it would have been faster plus it was slipping bad in 3rd

No one is comparing it to a Super Stock engine, it is slower than a Stock Eliminator engine, never mind Super Stock. My Super Stock 396 will go way faster, it went 9.50 in terrible air, with broken valvesprings, and it still has a single 780.

And 10.0 is slow for a rectangle port 468 @ 3300 pounds, especially with a roller cam and a tunnel ram with two carburetors.

[ClassicComp]

Cams too big & converters too tight.
To start it's not going to run like a well prepped a/sa either

[rocketracer380]

U

[rocketracer380]

I know the benefits and cost involved in bigger cubes but mid 10's blowin thru 3rd isn't too bad for a 396 u can't compare my motor to a super stocker and yes my comp is 12/12:5 my heads started life as 108 cc and they've been milled to about 100cc as far as rpm goes the driver only reved the motor to 7000 and I told him to shift it at 7800 I know there's more in it but I don't expect it to go 9's @3400# my bracket motors usually run 9.8/10.0's @ 3200 with factory iron heads so 10.5's blowing thru 3rd with mufflers and no jet tuning isnt horrible for a 396 I noticed frost build up on the runner which I was told that if u get frost build up on the runners the jetting was close to optimal not sure how true that is never pulled plugs to check for rich or lean

[ClassicComp]

Your engines not much different than mine.
I shift at 7000 presently and mines undergeared somewhat.

[af2]

I I noticed frost build up on the runner which I was told that if u get frost build up on the runners the jetting was close to optimal not sure how true that is never pulled plugs to check for rich or lean

You running Methanol?

[rocketracer380]

I had a single carb on my 468. and 9.80's/10.0's @ 3400 with a driver. I wiegh 380 anything I sit in is heavy. iron heads with no portwork and STD bore 427 's with stock d ports I think lo10's is good I've seen people with long rods aluminium heads fully ported not go that fast I basically had an ls7 based motor trw pistons not hidollar pieces. my 434 small blocks go 10.0''s@ 3400 on pump gas with 4.10's off the footbrakin is that too slow for you too alan with off the shelf 23's bbc cost 1/3 less to build

[rocketracer380]

We can't all have killers like Alan some of us are just slow what a dick

[tenxal]

We can't all have killers like Alan some of us are just slow what a dick

No, he's just giving an honest evaluation. You have a lot more left in your combination....that's a positive thing.

[jeff swisher]

Yes much more potential in it. I can change shift points from first to second with a 3 speed and change ET by 2 tenths.
And my 3rd gear holds.
I have a buddy that thought his jetting was dead on ..He made many passes in the car and came over to me and said the last pass he made was the sweet spot there was no more left in it.

I told him bring it over to me as I was in the pits tuning on my ride and 1 other.
He brought it over and I changed his jetting and told him go make another pass.
He came back and said it went 4 tenths quicker and asked what i did.
I told him I leaned it down.
He kept adding more and more jet and his plugs on the porcelain still looked snow white.
At least where you could see it.

Keep tuning and trying different shift points and fix 3rd.

Buddies 396 shifting at 6500 vs 7000 was 1/2 second difference but that was 308 gear with TH 400 using first and second only.
Much slower and weight was 4200+ lbs. makes a difference as we all know.

[rocketracer380]

I'm sure this combo has more in it like I said only went to the track once had suspension issues and tranny issues my converter was tight at 4000 stall and I ran the carbs as is couldn't honest tell you what jets it had but u can't compare apples to oranges superstock / comp eliminator engines I've had plenty of BBC/SBC and have been goin to the track for years there are racers out there that don't even get outta of the tens with a 468 there are others that run well int the 9"s not every one's combo is optimal but for a 5000 dollar 468 soup to nuts with a solid roller 9.8/10.0"s first Time out with a new combo I don't think it's a dud 135/136mph shows potential I've seen racers go much slower with full out take 468 I think that's respectful Time for a std rod 468 with a small roller I built an 8;75 comp 502 BBC with a ft solid .638' cam car went 10.7 in a 3600 # car with mufflers small headers stock d ports heads and a junk sideways torker intake on piss water 87 octane I guess that was a dud too by Alan's standards because it was a 500" engine he'll probably compare it to a Warren Johnson ps motor lol

[jeff swisher]

I do not think Alen was busting your chops rocketracer I think he was merely stating no need to waste money on a stroker 396 as the 396 has potential once bugs are worked out.

That is the way I took it.

[Alan Roehrich]

I do not think Alen was busting your chops rocketracer I think he was merely stating no need to waste money on a stroker 396 as the 396 has potential once bugs are worked out.

That is the way I took it.

Pretty much.

In any event, putting a 4" crank in a 396 block is a really expensive way to gain not enough cubic inches, and leave the valves shrouded, which is a problem really even at 4.250" bore.

There's probably a half second or more in repairing the transmission (needs to be done anyway), installing the correct torque converter, and finding out how close the carburetors are to being correct.

But hey, get all insulted, call me names, and spend $2,000, tear into your engine, and create a poor combination because you'd rather call me names than listen. It damned sure won't bother me at all, I don't care how much money you waste or how slow you go.

[tjz450]

The A/SA record is 9.93 at 129.99 on 2/21/16. Mr. DeArmond has had the record along time. So how much ET is in his chassis tuning skills. I would love to have him set my car up, but certainly could not afford him.

[jeff swisher]

maybe i got lucky as did some relatives which i learned from on how to make a car stick.
Leaf springs are my favorite maybe because i know what they want.
I shift my spring pack forward so I have multiple leafs under the spring eye and then clamp the front pack to keep it from twisting up.
Next up is air shocks so you can load passenger side a little more or you can stagger spring rates like adding 1 extra spring to the passenger side rear.

Done it like that for many years and the cars flat hook up and go straight. especially with today's tires.