Whats involved in changing heads

[Rosco666]

Just wanted to know whats involved in throwing an efi head on a standard 202.

diffuculty
how much
really worth it

[Goon]

Hey mate

Here's one of my earlier posts.

An EFI question. :p

[Rosco666]

so basically better off droppin an entire efi motor in
to much screwin around and youd probally have a lot of problems later on
thanks for that

[3800VH]

just drop a vn/vp v6 in its piss easy

[Marco-EFIVL]

But VN/VP motor isn't Jap!

[3800VH]

Jap crap Never

[Marco-EFIVL]

Jap revvs hard though..... Mmmmm Jap....

[Grantis1976]

Afew magazines have done specials on this subject, and even giveaway motors.

The best combo off the top of my head was a RED BLOCK

joined to a VC commy BLUE HEAD

topped off with EFI from a VK BLACK MOTOR

All this thrown together with a warm ( not hot ) cam and chip package from Crow Cams, extractors with 2 1/4 inch system, double row timming chain / gear drive, remapped vc "blue" dizzy, hypertetic pistons, cold air box with K&N panel filter.

This little combo got a VH commy that was stock (other than motor ) down the 1/4 in a high 13.

[synoptica]

This little combo got a VH commy that was stock (other than motor ) down the 1/4 in a high 13.

Sorry dude I'm gonna call your bluff on that - I'd be guessing very high 14's if not low 15's with that combo

Got timeslips or anything? Just that I've seen PLENTY of similar spec'd 202s that can only push a Commo down the quarter in high 14's at best.

I mean I'm in the process of rebuilding my 202 and I'd be VERY happy with those figures... but I know I'm not gonna get them

And a 'cam and chip' package? Can't chip a VK ECU my friend. It's replace or nothing!

On topic: 202 head change is a piece of piss. I did mine with nothing other than a Gregory's manual and a bit of advice from forums. Noone helped me along the way - didn't know too much about engines at this stage either.

[Hairy Eater]

why not put in the 3 liter multi EFI Nissan motor... bolt on the ex 2 liter toyota super-charger about $2,000 with all custom brackets instructions.... get 30% extra horses ...

[AklHoon]

I guees its a matter of different strokes for different folks.
Over here we have quiet a few guys using blocks like the old 173 0r 186 style blocks as the seem to handle bit more punnishment.
But simply as getting a machine shop to plug and tap your water jackets to suit will sort it out and get your old red block breathing ( a Black and EFI VK black head are the same.).
But the 12 port on a red block can make a awsom motor as specaily the 186 (factory steel crank ) And changing to a electronic ignition and good 2brl carb with good exauste and small cam with good lift will see your little red singing like a bird. Good luck hope this helps.

[Robandcarmel]

Hello mate. Yep you are right. The older the block the better. If you can find an HP block (from an EH) they are the strongest. Get it bored 60thou. Then have it decked, resin filled and run a stroker kit....202 crank etc.
Nothing will work better than a serious "head-job" Most of the expensive work is in the labour of porting, but for a small outlay, buy a die-grinder and do it yourself! Should take at least 3 days to do it right. Larger valves, go the roller rockers for strength, and heavy springs, top quality retainers.
Try to get a 12 port head to start with, then shave it to desired compression ratio specs. Ask an expert here. Be prepared to pay for high octane fuel, and lots of it!
PS If you can track down a "Phil Irving" alloy head.....just buy it!! May cost you around $7000 though.
If you are only doing road work , go for a 350 Holly or a Weber from a !#f o r d ^/??....for real fast track days can't beat the triple webers.
Hope this helps. Cheers Rob