1.6 Head

adamgreen01 · Post by **adamgreen01** » Thu Jul 21, 2005 12:42 pm

Will a 1.6 head fit on to my 1.4 8v, if so will it add much power?

broster · Post by **broster** » Thu Jul 21, 2005 5:25 pm

pct corsa · Post by **pct corsa** » Sat Jul 23, 2005 12:42 pm

[quote=\"broster\"]no.[/quote]

no it wont fit or no more power? was thinking of this myself as valves should be bigger giving more torque!

broster · Post by **broster** » Sat Jul 23, 2005 1:35 pm

no it wont fit.

pct corsa · Post by **pct corsa** » Sun Jul 24, 2005 4:18 pm

ok cheers mate

corsacheater · Post by **corsacheater** » Fri Jul 29, 2005 12:03 am

if u have an 8 valve engine the head wont fit on top of the block as the cams are different. gud try tho mate!

pct corsa · Post by **pct corsa** » Fri Jul 29, 2005 5:40 pm

cheers m8 we have got hold of 1.6 head anyway will be doing some experimenting with valve sizes and seeing if anything can be done ie fit 1.6 valves into 1.4 head with seats recut or use 1.4 cam and carrier on 1.6 head etc also got 2.0 head just to have a play will let you all know if any thing works!

broster · Post by **broster** » Fri Jul 29, 2005 5:49 pm

the 16v cam wont fit the 8v engine, the valves will be smaller on the 16v than on the 8v..... the 1.4 16v and the 1.6 16v have the same heads anyway. the c20xe wont fit anything, and no need to make the valves bigger unlessy ou go for a high state of tune!

pct corsa · Post by **pct corsa** » Fri Jul 29, 2005 9:50 pm

hmm maybe ive not made that too clear \"broster\" they are all 8v heads but from other models of vauxhall cars!! for example rover produced 1275/ 1300 engines for minis metros maestros and montegos but the meastro head had better porting and bigger valves so the (tuning) engine building world sold stage 2 heads for minis metros and guess what the people were spending their hard earned money on yes you guessed it standard meastro heads so it is worth a good look around secrets can be found (im new to vauxhall corsas) im a time served mechanic and have messed with engines for close on 25 yrs

16vOllie · Post by **16vOllie** » Sat Jul 30, 2005 9:55 am

what about if you stuck a 1.6 8v head on the 1.4 8v and put a turbs on it from maybe a R5 GT-Turbo..........
.....low compression..........booster power.....i make that pimms\'o\'clock!

pct corsa · Post by **pct corsa** » Sat Jul 30, 2005 2:31 pm

[quote=\"16vOllie\"]what about if you stuck a 1.6 8v head on the 1.4 8v and put a turbs on it from maybe a R5 GT-Turbo..........
.....low compression..........booster power.....i make that pimms\'o\'clock![/quote]

i wish but competition rules and the class im going to compete in wont allow it

j1400 · Post by **j1400** » Sun Jul 31, 2005 10:09 am

IF they are all 8v engines, the heads are all interchanagable. there are 3 different port shapes, cathederal (1.2/1.3 nova engines (early) Square found on the SPi engines, and round on the MPi injected cars. The 1.4 and 16 round shap heads feature the beiggest valves and have the best port shape. So if the engine is a 1.4 MPi then there\'s no point putting a skimmed 1.6 on there, just finsh the head round the throat of the valve seat to improve flow and use a GSi cam.

And just tyo throw a spanner in Mark, the small block 16v head goes on a 8v bottom end, provided vlave cut outs have been added, the cam belt rollers for the 16v head are on the head, it\'s not that hard to do.

PCT- good luck with the corsa engine, Skip brown engine you have sounds tastey, I\'m halfway thogh building a supercharged XU9 at the mo

broster · Post by **broster** » Sun Jul 31, 2005 11:37 am

didnt realise the ywere all 8v, i assumed they were all corsa engines! my bad!

pct corsa · Post by **pct corsa** » Sun Jul 31, 2005 12:49 pm

thanx for the info j1400 its an spi engine that i have, the head ive aquired is a 1.6 8v (nova) i think the 1.6 head (spi) is going to be of more interest to me do you know if the valves are bigger as ive not taken my 1.4 apart yet to measure!

the gsi cam will fit eh great news !

no prob broster dont think i put it that clearly im better with engines than English m8

if anyone on here has a 1.6 spi head and or a standard gsi cam please let me know!!!!

pct corsa · Post by **pct corsa** » Sun Jul 31, 2005 12:57 pm

PCT- good luck with the corsa engine, Skip brown engine you have sounds tasty, I\'m halfway through building a supercharged XU9 at the mo[/quote]

are you mad that sounds wild!!
i sold my leather interior to a guy NR st Helen\'s with a turbo tecknics 1.9 that was very nice

do you go on 205 gti drivers forum as well ? sorry off topic BTW